(redirected from didn't know the first thing about)
Also found in: Thesaurus.


to understand as true: I know the sun will come up tomorrow.; to be aware of: I know his eyes are green.; to be acquainted with: I know her sister.
Not to be confused with:
no – a negative: The answer is no.; a refusal or denial: No, I don’t have it.
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree


v. knew (no͞o, nyo͞o), known (nōn), know·ing, knows
1. To perceive directly; grasp in the mind with clarity or certainty.
2. To regard as true beyond doubt: I know she won't fail.
3. To have a practical understanding of, as through experience; be skilled in: knows how to cook.
4. To have fixed in the mind: knows her Latin verbs.
5. To have experience of: "a black stubble that had known no razor" (William Faulkner).
a. To perceive as familiar; recognize: I know that face.
b. To be acquainted with: He doesn't know his neighbors.
7. To be able to distinguish; recognize as distinct: knows right from wrong.
8. To discern the character or nature of: knew him for a liar.
9. Archaic To have sexual intercourse with.
1. To possess knowledge, understanding, or information.
2. To be cognizant or aware.
know (someone) in the biblical sense
To have sexual relations with (someone).
in the know Informal
Possessing special or secret information.
you know Informal
Used parenthetically in conversation, as to fill pauses or educe the listener's agreement or sympathy: Please try to be, you know, a little quieter. How were we supposed to make camp in a storm like that, you know?

[Middle English knouen, from Old English cnāwan; see gnō- in Indo-European roots.]

know′a·ble adj.
know′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


vb (mainly tr) , knows, knowing, knew (njuː) or known (nəʊn)
1. (also intr; may take a clause as object) to be or feel certain of the truth or accuracy of (a fact, etc)
2. to be acquainted or familiar with: she's known him five years.
3. to have a familiarity or grasp of, as through study or experience: he knows French.
4. (also intr; may take a clause as object) to understand, be aware of, or perceive (facts, etc): he knows the answer now.
5. (foll by how) to be sure or aware of (how to be or do something)
6. to experience, esp deeply: to know poverty.
7. to be intelligent, informed, or sensible enough (to do something): she knew not to go home yet.
8. (may take a clause as object) to be able to distinguish or discriminate
9. archaic to have sexual intercourse with
10. I know what I have an idea
11. know what's what to know how one thing or things in general work
12. you know informal a parenthetical filler phrase used to make a pause in speaking or add slight emphasis to a statement
13. you never know things are uncertain
in the know informal aware or informed
[Old English gecnāwan; related to Old Norse knā I can, Latin noscere to come to know]
ˈknowable adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



v. knew, known, know•ing,
n. v.t.
1. to perceive or understand as fact or truth; apprehend clearly and with certainty.
2. to have fixed in the mind or memory: to know a poem by heart.
3. to be cognizant of: I know it.
4. to be acquainted or familiar with (a thing, place, person, etc.): I know the mayor well.
5. to understand from experience or practice: to know how to make gingerbread.
6. to be able to distinguish, as one from another: to know right from wrong.
7. to recognize: I'd know her if I saw her again.
8. Archaic. to have sexual intercourse with.
9. to have knowledge or clear and certain perception, as of fact or truth.
10. to be cognizant or aware, as of some circumstance or occurrence; have information.
11. the fact or state of knowing; knowledge.
in the know, privy to information.
[before 900; Middle English knowen, knawen, Old English gecnāwan; c. Old High German -cnāhan, Old Norse knā to know how, be able to; akin to Latin(g)nōscere, Greek gignṓskein. See gnostic, can1]
know′a•ble, adj.
know′er, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


1. awareness of facts

If you know that something is true, you are aware that it is true. The past tense of know is knew. The -ed participle is known.

I knew that she had recently graduated from law school.
I should have known that something was seriously wrong.

Be Careful!
Don't use a progressive form with know. Don't say, for example, 'I am knowing that this is true'. You say 'I know that this is true'.

2. 'I know'

If someone tells you a fact that you already know, or if they say something and you agree, you say 'I know'.

'That's not their fault, Peter.' – 'Yes, I know.'
'This pizza is great' – 'I know.'

In American English you can also say 'I know it' in this situation. However, this often indicates that you are angry or annoyed.

'The speed limit here is 35.' – 'Yeah, I know it.'
3. 'let...know'

If you say that you will let someone know something, you mean that you will give them some information when you receive it, or if you receive it.

I'll find out about the car and let you know what's happened.
Let me know if she calls.
4. acquaintance and familiarity

If you know a person, place, or thing, you are acquainted with them or are familiar with them.

Do you know David?
He knew London well.
Do you know the poem 'Kubla Khan'?
5. 'get to know'

If you want to say that someone gradually becomes acquainted with a person or gradually becomes familiar with a place, you say that they get to know the person or place.

I got to know some of the staff quite well.
I really wanted to get to know America.

Be Careful!
Don't use know without get to to mean 'become acquainted with'.

6. 'know how to'

If you know how to do something, you have the necessary knowledge to do it.

No one knew how to repair it.
Do you know how to drive?

Don't say that someone 'knows to' do something.

Collins COBUILD English Usage © HarperCollins Publishers 1992, 2004, 2011, 2012


Past participle: known
Gerund: knowing

I know
you know
he/she/it knows
we know
you know
they know
I knew
you knew
he/she/it knew
we knew
you knew
they knew
Present Continuous
I am knowing
you are knowing
he/she/it is knowing
we are knowing
you are knowing
they are knowing
Present Perfect
I have known
you have known
he/she/it has known
we have known
you have known
they have known
Past Continuous
I was knowing
you were knowing
he/she/it was knowing
we were knowing
you were knowing
they were knowing
Past Perfect
I had known
you had known
he/she/it had known
we had known
you had known
they had known
I will know
you will know
he/she/it will know
we will know
you will know
they will know
Future Perfect
I will have known
you will have known
he/she/it will have known
we will have known
you will have known
they will have known
Future Continuous
I will be knowing
you will be knowing
he/she/it will be knowing
we will be knowing
you will be knowing
they will be knowing
Present Perfect Continuous
I have been knowing
you have been knowing
he/she/it has been knowing
we have been knowing
you have been knowing
they have been knowing
Future Perfect Continuous
I will have been knowing
you will have been knowing
he/she/it will have been knowing
we will have been knowing
you will have been knowing
they will have been knowing
Past Perfect Continuous
I had been knowing
you had been knowing
he/she/it had been knowing
we had been knowing
you had been knowing
they had been knowing
I would know
you would know
he/she/it would know
we would know
you would know
they would know
Past Conditional
I would have known
you would have known
he/she/it would have known
we would have known
you would have known
they would have known
Collins English Verb Tables © HarperCollins Publishers 2011
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.know - the fact of being aware of information that is known to few people; "he is always in the know"
knowing - a clear and certain mental apprehension
Verb1.know - be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about; "I know that the President lied to the people"; "I want to know who is winning the game!"; "I know it's time"
keep track - keep informed of fully aware; "I keep track of the stock market developments"
know - be aware of the truth of something; have a belief or faith in something; regard as true beyond any doubt; "I know that I left the key on the table"; "Galileo knew that the earth moves around the sun"
agnise, agnize, realize, recognize, realise, recognise - be fully aware or cognizant of
ignore - be ignorant of or in the dark about
2.know - know how to do or perform something; "She knows how to knit"; "Does your husband know how to cook?"
master, control - have a firm understanding or knowledge of; be on top of; "Do you control these data?"
get the hang, master - be or become completely proficient or skilled in; "She mastered Japanese in less than two years"
3.know - be aware of the truth of something; have a belief or faith in something; regard as true beyond any doubt; "I know that I left the key on the table"; "Galileo knew that the earth moves around the sun"
cognise, cognize, know - be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about; "I know that the President lied to the people"; "I want to know who is winning the game!"; "I know it's time"
foreknow, foresee, previse, anticipate - realize beforehand
4.know - be familiar or acquainted with a person or an object; "She doesn't know this composer"; "Do you know my sister?"; "We know this movie"; "I know him under a different name"; "This flower is known as a Peruvian Lily"
know - perceive as familiar; "I know this voice!"
5.know - have firsthand knowledge of states, situations, emotions, or sensations; "I know the feeling!"; "have you ever known hunger?"; "I have lived a kind of hell when I was a drug addict"; "The holocaust survivors have lived a nightmare"; "I lived through two divorces"
taste - experience briefly; "The ex-slave tasted freedom shortly before she died"
live over, relive - experience again, often in the imagination; "He relived the horrors of war"
experience, go through, see - go or live through; "We had many trials to go through"; "he saw action in Viet Nam"
6.know - accept (someone) to be what is claimed or accept his power and authorityknow - accept (someone) to be what is claimed or accept his power and authority; "The Crown Prince was acknowledged as the true heir to the throne"; "We do not recognize your gods"
accept - consider or hold as true; "I cannot accept the dogma of this church"; "accept an argument"
7.know - have fixed in the mind; "I know Latin"; "This student knows her irregular verbs"; "Do you know the poem well enough to recite it?"
have down - have (something) mastered; "She has the names of the fifty states down pat"
8.know - have sexual intercourse withknow - have sexual intercourse with; "This student sleeps with everyone in her dorm"; "Adam knew Eve"; "Were you ever intimate with this man?"
neck, make out - kiss, embrace, or fondle with sexual passion; "The couple were necking in the back seat of the car"
have, take - have sex with; archaic use; "He had taken this woman when she was most vulnerable"
copulate, mate, couple, pair - engage in sexual intercourse; "Birds mate in the Spring"
9.know - know the nature or character of; "we all knew her as a big show-off"
agnise, agnize, realize, recognize, realise, recognise - be fully aware or cognizant of
10.know - be able to distinguish, recognize as being different; "The child knows right from wrong"
differentiate, distinguish, secern, secernate, severalise, severalize, tell apart, separate, tell - mark as different; "We distinguish several kinds of maple"
11.know - perceive as familiar; "I know this voice!"
know - be familiar or acquainted with a person or an object; "She doesn't know this composer"; "Do you know my sister?"; "We know this movie"; "I know him under a different name"; "This flower is known as a Peruvian Lily"
recall, recollect, remember, call back, call up, retrieve, think - recall knowledge from memory; have a recollection; "I can't remember saying any such thing"; "I can't think what her last name was"; "can you remember her phone number?"; "Do you remember that he once loved you?"; "call up memories"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


1. have knowledge of, see, understand, recognize, perceive, be aware of, be conscious of I don't know the name of the place. I think I know the answer.
2. be acquainted with, recognize, associate with, be familiar with, be friends with, be friendly with, have knowledge of, have dealings with, socialize with, fraternize with, be pals with Do you two know each other?
be acquainted with be unfamiliar with
3. (sometimes with about or of) be familiar with, experience, understand, ken (Scot.), comprehend, fathom, apprehend, have knowledge of, be acquainted with, feel certain of, have dealings in, be versed in Hire someone with experience, someone who knows about real estate.
be familiar with be ignorant of, be unfamiliar with
4. recognize, remember, identify, recall, place, spot, notice, distinguish, perceive, make out, discern, differentiate, recollect Would she know you if she saw you on the street?
"What you don't know can't hurt you"
"Know thyself"
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002


1. To perceive directly with the intellect:
Scots: ken.
2. To participate in or partake of personally:
Archaic: prove.
3. To undergo an emotional reaction:
4. To perceive to be identical with something held in the memory:
5. To recognize as being different:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
يَتَعَرَّف على، يُمَيِّزيَعْرِفيَعْرِفُيَعْرِف الشَّخْصيَعْرِف، يَتَعَلَّم
kendevidekende tilgenkende
vitakunnaòekkjaòekkja, hafa òekkingu áþekkja
gerai orientuotisišmanantisišmanymasnebūti tokiam kvailampažinti
kännavetaveta omkänna tillkunna
bilmektanımakeskiden yatmis olmakhaberi olmakniyetini bilmek


[nəʊ] (knew (pt) (known (pp)))
Look up set combinations such as know the ropes, know one's stuff, know sth backward at the other word.
1. (= be aware of)
1.1. [+ facts, dates, etc] → saber
to know the difference betweensaber la diferencia entre ...
she knows a lot about chemistrysabe mucho de química
I don't know much about historyno sé mucho de historia
I don't know much about thatno sé mucho de eso
I know nothing about it; I don't know anything about itno sé nada de eso
he knows all the answerslo sabe todo
one minute you're leaving school, then before you know it, you've got a family to supportdejas el colegio y al minuto siguiente, antes de darte cuenta, tienes una familia que mantener
1.2. (with clause) to know thatsaber que
to know why/when/where/ifsaber por qué/cuándo/dónde/si
to know how to do sthsaber hacer algo
do you know how he did that?¿sabes cómo lo hizo?
you know how it isya sabes cómo son las cosas
you don't know how glad I am to see youno sabes cuánto me alegro de verte
I'll or I'd have you know thatque sepas que ..., para que te enteres, ...
you haven't time, as well he knewno tienes tiempo, como él bien sabía
you know as well as I do thatsabes tan bien como yo que ...
to know whatsaber qué or lo que
I know what I saidya sé qué or lo que dije
he doesn't know what to dono sabe qué hacer
I don't know whether or not you've heard, butno sé si has oído o no pero ...
to know what's whatsaber cuántas son cinco
1.3. (in exclamations) I knew it!¡lo sabía!
that's all you know!¡y más que podría yo contarte!
don't I know it!¡a mí me lo vas a contar!
"she's furious" - "don't I know it?"-está furiosa -¡a mí me lo vas a contar!
how was I to know that ... ?¿cómo iba yo a saber que ...?
I should have known you'd mess things up!debería haberme figurado or imaginado que ibas a estropear las cosas
do you know what, I think she did it!¿sabes una cosa? creo que lo hizo ella
I know what, let's drop in on Daphne!¡ya sé! ¡vamos a pasarnos por casa de Daphne!
you know what you can do with it!¡mételo por donde te quepa!
(well,) what do you know!¿qué te parece?, ¡fíjate!, ¡mira nomás! (LAm)
what does he know about dictionaries!¡qué sabrá él de diccionarios!
Peter, wouldn't you know it, can't come!Peter, como era de esperar, no puede venir
1.4. to know to do sth >: does he know to feed the rabbits?¿sabe que tiene que dar de comer a los conejos?
2. (= be acquainted with) [+ person, place] → conocer; [+ subject] → saber
do you know him?¿lo conoces?
to know Frenchsaber francés
to know one's classics/linguistic theorysaberse los clásicos/la teoría lingüística
most of us know him only as a comedianla mayoría de nosotros lo conocemos sólo como comediante
civilization as we know itla civilización tal y como la conocemos
don't you know me better than that!¿o es que no me conoces?, ¡como si no me conocieras!
to know sb by sight/nameconocer a algn de vista/de nombre
to know sb by reputationhaber oído hablar de algn
she knew him for a liar and a cheatsabía que era un mentiroso y un tramposo
they know each other from universityse conocen de la universidad
if I know him, he'll say nome apuesto a que dice que no
she knows her own mindsabe lo que quiere
it's not what you know, it's who you knowlo importante no es lo que sabes sino a quién conoces
3. (with infinitive) I know him to be a liarsé que es un mentiroso
he is known to have been therese sabe que ha estado allí
I've never known him to smilenunca lo he visto sonreír
I've never known her to be wrongque yo sepa nunca se ha equivocado
it has never been known to happenno se tienen noticias de que haya pasado nunca
I don't know him to speak tono lo conozco personalmente
4. (= understand) I don't know how you can say thatno sé or no entiendo cómo puedes decir eso
you know what I meanya me entiendes, ya sabes lo que quiero decir
I know the problem!conozco el problema
I know the problems that arise whensé los problemas que surgen cuando ...
5. (= recognize) → reconocer
he knew me at onceme reconoció en seguida
I'd have known you anywherete hubiese reconocido en cualquier parte
I knew him by his voicele reconocí por la voz
to know right from wrongsaber distinguir el bien del mal
she knows a good thing when she sees itsabe reconocer algo bueno cuando lo ve
6. (= be certain) I don't know if it has made things any easierno sé si ha facilitado las cosas
I don't know if or that it's a very good ideano sé si es una buena idea, no estoy seguro de que sea una buena idea
I don't know if I can do itno sé si puedo hacerlo
7. (archaic) (sexually) to know sbconocer a algn
8. (in set expressions)
to get to know sb(llegar a) conocer a algn
I'd like to get to know you betterme gustaría (llegar a) conocerte mejor
we got to know each other during military servicellegamos a conocernos bien durante la mili
to get to know sth as you get to know the piece bettercuando conoces mejor la pieza ..., cuando estás más familiarizado con la pieza ...
get to know the area before buying a houseestudia bien la zona antes de comprar una casa
to let sb know ... I'll let you know the price as soon as I canen cuanto sepa el precio te lo digo
let us know if you need helpavísanos si necesitas ayuda
let me know if you can't comeavísame si no puedes venir
let me know how you get onya me contarás cómo te fue
1. (gen) → saber
I don't knowno (lo) sé
yes, I knowsi, ya lo sé
Mummy knows bestmamá sabe lo que te conviene
he doesn't know any betterno sabe lo que hace
he thinks he's going to get the job, but I know bettercree que va a conseguir el trabajo, pero yo sé mejor lo que cabe esperar
you ought to know better than toya deberías saber que no se puede ...
Mary knows better than to risk upsetting meMary sabe demasiado bien que no le conviene que me enfade
how should I know?¿cómo iba yo a saberlo?
I know, let'sya sé, vamos a ...
one never knows, you never knownunca se sabe
there's no (way of) knowingno hay manera de saberlo
afterwards they just don't want to know (in relationships) → después "si te he visto no me acuerdo"; (in business) → después no quieren saber nada del asunto
who knows?¿quién sabe?
"was she annoyed about it?" - "I wouldn't know"-¿se enfadó por eso? -¿y yo que sé?
it's not easy, you knowno es fácil, sabes
you know, I think I'm beginning to like Richard¿sabes? creo que me está empezando a gustar Richard
see also all B4
2. (in set expressions)
to know about to know about sth/sb: did you know about Paul?¿te has enterado de or sabes lo de Paul?
I didn't know about the accidentno me había enterado de lo del accidente, no sabía nada de lo del accidente
I'd known about his illness for some timesabía lo de su enfermedad hacía tiempo
everything you always wanted to know about sextodo lo que siempre ha querido saber sobre el sexo
she knows about catsella entiende de gatos
"you must be delighted!" - "I don't know about that"¡debes estar encantado! -no sé qué decirte
"you're a genius!" - "oh, I don't know about that"-¡eres un genio! -hombre, no sé qué decirte
"I'm taking tomorrow off" - "I don't know about that!"-mañana me tomo el día libre -no sé, habrá que ver
I don't know about you, but I think it's terriblea ti no sé, pero a mí me parece terrible
to get to know about sthenterarse de algo
to know of (= be acquainted with) → conocer
I know of a nice little caféconozco un pequeño café muy agradable
I don't know him but I know OF himno lo conozco pero he oído hablar de él; (= be aware of) I know of no reason why he should have committed suicideque yo sepa no tenía razones para suicidarse
the first I knew of it was when Pete told melo primero que oí or supe del asunto fue lo que me dijo Pete
that was the first I knew of itesa fue la primera noticia que tuve del asunto
not that I know ofque yo sepa, no
to let sb know we'll let you knowya te diremos lo que sea, ya te avisaremos
I'll let you know on Mondayte diré lo que sea el lunes
why didn't you let me know?¿por qué no me lo dijiste?
to be in the know (= well-informed) → estar enterado; (= privy to sth) → estar al tanto or al corriente
those not in the knowlos que no lo sabían
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


vt [knew] (pt) [known] (pp)
[+ name, date, address, details] → savoir, connaître
I don't know her address → Je ne sais pas or je ne connais pas son adresse.
what do they know? (= they know nothing) → qu'est-ce qu'ils en savent?
(when followed by a clause)savoir
I don't know what to do → Je ne sais pas quoi faire.
to know what to expect → savoir à quoi s'attendre
We knew what to expect → Nous savions à quoi nous attendre.
you know what I mean → tu vois ce que je veux dire
You don't know how much it means to me → Tu ne peux pas savoir à quel point c'est important pour moi.
to know how to do sth → savoir faire qch
The doctors know how to deal with the disease → Les médecins savent traiter la maladie.
I don't know how to do it → Je ne sais pas comment faire.
to know how sth happens → savoir comment qch arrive
We don't know how children acquire language → Nous ne savons pas comment les enfants acquièrent le langage.
to know that → savoir que
I know that you like chocolate → Je sais que tu aimes le chocolat.
I didn't know that your Dad was a policeman → Je ne savais pas que ton père était policier.
I knew that he lived somewhere in Glasgow → Je savais qu'il habitait quelque part à Glasgow.
I knew at once that something was wrong → J'ai tout de suite su que quelque chose n'allait pas.
to get to know sth [+ fact] → prendre connaissance de qch
to let sth be known [+ intentions] → faire connaître qch
to let it be known (that) ... → faire savoir que ...
The Prime Minister has let it be known that he is against it → Le Premier ministre a fait savoir qu'il est contre.
well, what do you know! → voyez-vous ça !
to know better than to do sth (= not make the mistake of doing sth) → ne pas être assez bête pour faire qch
[+ person, place, book] → connaître
I know her → Je la connais.
I don't know him → Je ne le connais pas
I know Paris well → Je connais bien Paris.
Do you know the poem "Kubla Khan"? → Tu connais le poème "Kubla Khan"?
to get to know sb → apprendre à connaître qn
He's quite nice once you get to know him → Il est très gentil une fois qu'on a appris à le connaître.
to get to know a country → apprendre à connaître un pays
[+ language, words] → connaître
I don't know any German → Je ne parle pas du tout allemand., Je ne connais pas du tout l'allemand
She knew a few words of English → Elle connaissait quelques mots d'anglais.
(= recognize)
He knew a good bargain when he saw one → Il savait reconnaître une bonne affaire lorsqu'il en voyait une.
to know right from wrong → savoir distinguer le bien du mal
to know sb/sth as sth (= call) → connaître qn/qch sous le nom de
Everyone knew him as Dizzy → Il était connu de tout le monde sous le nom de Dizzy., Tout le monde le connaissait sous le nom de Dizzy.
to be known as (= called) → être connu sous le nom de
BSE, more commonly known as Mad Cow Disease → l'ESB, plus connue sous le nom de maladie de la vache folle
It's a long way. - Yes, I know → C'est loin. - Oui, je sais.
I don't know → Je ne sais pas.
The white dress, you know, the one with the short sleeves → La robe blanche, tu sais, celle à manches courtes.
how should I know? → comment voulez-vous que je le sache?
you never know! → on ne sait jamais!
as far as I know ... → à ma connaissance ..., autant que je sache ...
how was I to know (that) ...? → comment aurais-je pu savoir que ...?
know about
[+ news, arrangement, situation, event] → être au courant de
Do you know about the meeting this afternoon? → Tu es au courant de la réunion de cet après-midi?, Tu es au courant pour la réunion de cet après-midi?
He knew about the killing → Il était au courant du meurtre., Il avait eu vent du meurtre.
I don't know about that (= don't agree) → je n'en suis pas si sûr
(= have expertise in) [+ subject] → s'y connaître en
He knows about cars → Il s'y connaît en voitures.
to know a lot about sth → bien s'y connaître en qch
I don't know much about computers → Je ne m'y connais pas bien en informatique.
to know nothing about sth → ne rien connaître à qch
She knew nothing about music → Elle ne connaissait rien à la musique.
She didn't know anything about music → Elle ne connaissait rien à la musique.
know of
vt (= have heard of) → connaître
Many people did not even know of their existence → Nombreux étaient ceux qui ne connaissait même pas son existence.
Do you know of a good hairdresser? → Tu connais un bon coiffeur?
no, not that I know of (= not as far as I know) → non, pas autant que je sacheknow-all [ˈnəʊɔːl] n (British)je-sais-tout mf
He's such a know-all! → C'est Monsieur je-sais-tout!know-how [ˈnəʊhaʊ] n (= expertise) → savoir-faire m
They are dependent on Western know-how → Ils dépendent du savoir-faire occidental.
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


vb: pret <knew>, ptp <known>
= have knowledge aboutwissen; answer, facts, dates, details, results etckennen, wissen; French, English etckönnen; he knew her to be guiltyer wusste, dass sie schuldig war; to know what one is talking aboutwissen, wovon man redet; to know one’s own mindwissen, was man will; she knows all the answerssie weiß Bescheid, sie kennt sich aus; (pej)sie weiß immer alles besser; he might even be dead for all I knowvielleicht ist er sogar tot, was weiß ich; he thinks he knows all the answers or everythinger meint, er wüsste alles; that’s what I’d like to know (too)das möchte ich auch wissen; THAT’S what I’d like to knowdas möchte ich wirklich wissen; that’s worth knowingdas ist ja interessant; that might be worth knowinges könnte interessant sein, das zu wissen; before you know where you areehe man sichs versieht; I’ve been a fool and don’t I know it! (inf)ich sehs ja ein, ich war doof (inf), → ich war vielleicht doof (inf); she’s angry! — don’t I know it! (inf)sie ist wütend! — wem sagst du das! (inf)
= be acquainted with people, places, book, authorkennen; I know Bavaria wellich kenne Bayern gut, ich kenne mich gut in Bayern aus; do you know him to speak to?kennen Sie ihn näher?; we all know her as the headmistress/a generous personwir kennen Sie alle als die Schulleiterin/einen großzügigen Menschen; if I know John, he’ll already be therewie ich John kenne, ist er schon da; he didn’t want to know meer wollte nichts mit mir zu tun haben; know thyself!erkenne dich selbst! ? name N a, sight N b
= recognizeerkennen; to know somebody by his voice/walk etcjdn an der Stimme/am Gang etc erkennen; would you know him again?würden Sie ihn wiedererkennen?; he knows a good thing when he sees iter weiß, was gut ist; he knows a bargain/good manuscript when he sees oneer weiß, was ein guter Kauf/ein gutes Manuskript ist; this is the end of the welfare system as we know itdas ist das Ende des uns bekannten Wohlfahrtssystems
= be able to distinguishunterscheiden können; don’t you know your right from your left?können Sie rechts und links nicht unterscheiden?; you wouldn’t know him from his brotherSie könnten ihn nicht von seinem Bruder unterscheiden; do you know the difference between…?wissen Sie, was der Unterschied zwischen … ist?; to know the difference between right and wrong, to know right from wrongden Unterschied zwischen Gut und Böse kennen, Gut und Böse unterscheiden können; he wouldn’t know the differencedas merkt er nicht; he doesn’t know one end of a horse/hammer from the otherer hat keine Ahnung von Pferden/keine Ahnung, was ein Hammer ist (inf)
= experienceerleben; I’ve never known it to rain so heavilyso einen starken Regen habe ich noch nie erlebt; I’ve never known him (to) smileich habe ihn noch nie lächeln sehen, ich habe es noch nie erlebt, dass er lächelt; have you ever known me (to) tell a lie?haben Sie mich jemals lügen hören?; have you ever known such a thing to happen before?haben Sie je schon so etwas erlebt?, ist Ihnen so etwas schon einmal vorgekommen?
Bibl (obs: sexually) → erkennen
wissen; who knows?wer weiß?, weiß ichs?; I know!ich weiß!, weiß ich (doch)!; (having a good idea) → ich weiß was!, ich habe eine Idee!; I don’t know(das) weiß ich nicht; as far as I knowsoviel ich weiß, meines Wissens; he just didn’t want to knower wollte einfach nicht hören; afterwards they just didn’t want to knownachher wollten sie einfach nichts mehr davon wissen; I wouldn’t know (inf)weiß ich (doch) nicht (inf); don’t you know?weißt du das denn nicht?; how should I know?wie soll ich das wissen?; how was I to know?wie sollte ich das wissen?; I’m damned if I know (inf)ich habe echt keinen Schimmer (inf); the channel was rough, as I well know or as well I know!die Überfahrt war stürmisch, das kann ich dir sagen
? to know that …wissen, dass …
Note that while in English that can be omitted, in German dass must be used to introduce the next sentence.

when I saw the ambulance, I knew (that) something was wrongals ich den Krankenwagen sah, wusste ich, dass etwas nicht stimmte
? to know why…wissen, warum …; he didn’t know whyer wusste nicht, warum; I don’t know why you think it’s so funnyich weiß nicht, was du daran so komisch findest
? to know how to know how to do something (in theory) → wissen, wie man etw macht; (in practice) → etw tun können; I know how you feelich weiß, wie Sie sich fühlen; I don’t know how you can say that!wie kannst du das nur sagen!; you don’t know how good it is to see you againSie wissen gar nicht, wie sehr ich mich freue, Sie wiederzusehen
? to know better I know better than thatich bin ja nicht ganz dumm; I know better than to say something like thatich werde mich hüten, so etwas zu sagen; he knows better than to eat into the profitser ist nicht so dumm, den Gewinn anzugreifen; he/you ought to have known betterdas war dumm (von ihm/dir); he ought to have or should have known better than to do thates war dumm von ihm, das zu tun; you ought to know better at your agein deinem Alter müsste man das aber (besser) wissen; they don’t know any bettersie kennens nicht anders; he says he didn’t do it, but I know betterer sagt, er war es nicht, aber ich weiß, dass das nicht stimmt
? to know best OK, you know besto.k., Sie müssens wissen; mother always knows bestMutter weiß es am besten
? to get to know to get to know somebodyjdn kennenlernen; to get to know something (methods, techniques, style, pronunciation etc)etw lernen; habits, faults, shortcuts etcetw herausfinden; to get to know a placeeinen Ort kennenlernen
? to let sb know to let somebody know something (= not keep back)jdn etw wissen lassen; (= tell, inform)jdm von etw Bescheid sagen or geben; he soon let me know what he thought of iter hat mich schnell wissen lassen, was er davon hielt; when can you let me know?wann können Sie es mich wissen lassen?, wann können Sie mir Bescheid sagen?
? you know… you know, we could/there is …weißt du, wir könnten/da ist …; he gave it away, you knower hat es nämlich weggegeben; it’s raining, you knowes regnet; then there was this man, you know, and …und da war dieser Mann, nicht (wahr), und …; wear the black dress, you know, the one with the red beltzieh das schwarze Kleid an, du weißt schon, das mit dem roten Gürtel; it’s long and purple and, you know, sort of crinklyes ist lang und lila und, na ja, so kraus; (if you) know what I meandu weißt schon
? you never knowman kann nie wissen
? I’ll have you know it was nothing to do with me, I’ll have you know!es hatte nichts mit mir zu tun, damit du es weißt!
? there’s no knowing (inf)das kann keiner sagen, das weiß niemand; there’s no knowing what he’ll doman weiß nie, was er noch tut
? what do you know! (inf)sieh mal einer an!; what do you know! I’ve just seen her! (inf)stellen Sie sich vor, ich habe sie eben gesehen
? to be known ? also known; to be known (to somebody)(jdm) bekannt sein; it is (well) known that …es ist (allgemein) bekannt, dass …; is he/it known here?ist er/das hier bekannt?, kennt man ihn/das hier?; to be known for somethingfür etw bekannt sein; he is known to have been hereman weiß, dass er hier war; he is known as Mr Smithman kennt ihn als Herrn Smith; she wishes to be known as Mrs Whitesie möchte Frau White genannt werden ? also known
? to make sb/sth knownjdn/etw bekannt machen; to make it known that …bekannt geben, dass …; to make oneself knownsich melden (to sb bei jdm); (= introduce oneself)sich vorstellen (to sb jdm); (= become well-known)sich (dat)einen Namen machen; to make one’s presence knownsich melden (to bei)
? to become knownbekannt werden; (= famous)berühmt werden
? to let it be known that …bekannt geben, dass …
? to be in the know infeingeweiht sein, im Bild sein (inf), → Bescheid wissen (inf); the people in the know say …Leute, die darüber Bescheid wissen, sagen …, die Fachleute sagen
? know about vi +prep obj (= have factual knowledge, experience of) history, maths, politicssich auskennen in (+dat); AfricaBescheid wissen über (+acc); women, men, cars, horsessich auskennen mit; (= be aware of, have been told about)wissen von; I know about thatdas weiß ich; I didn’t know about thatdas wusste ich nicht; I only knew about it yesterdayich habe erst gestern davon gehört; I’d rather not know about itdas möchte ich lieber nicht wissen; did you know about Maggie?weißt du über Maggie Bescheid?; I know about John, but is anyone else absent?John, das weiß ich, aber fehlt sonst noch jemand?; to get to know about somebody/somethingvon jdm/etw hören; I don’t know about thatdavon weiß ich nichts; (= don’t agree)da bin ich aber nicht so sicher; I don’t know about you, but I’m hungryich weiß nicht, wie es Ihnen geht, aber ich habe Hunger; she’s very clever, isn’t she? — I don’t know about clever, but she certainly knows how to use peoplesie ist sehr klug, nicht wahr? — klug, na, ich weiß nicht, aber sie weiß Leute auszunutzen vt sep +prep obj to know a lot/nothing/something about something (= have factual knowledge)viel/nichts/einiges über etw (acc)wissen; (in history, maths etc) → in etw (dat)gut/nicht/ein bisschen Bescheid wissen; (about cars, horses etc) → viel/nichts/einiges von etw verstehen; (= be aware of, have been told about)viel/nichts/einiges von etw wissen; we don’t know anything about himwir wissen nichts über ihn; that was the first I knew about itdavon hatte ich nichts gewusst; not much is known about thatdarüber weiß man nicht viel; I know all about thatda kenne ich mich aus; (= I’m aware of that)das weiß ich; (= I’ve been told about it)ich weiß Bescheid; I know all about youich weiß über Sie Bescheid; that’s all you know about it! (iro)das meinst auch nur du!; I don’t know about that!da bin ich mir nicht so sicher!
? know of vi +prep obj café, better methodkennen; (= have heard of) sb, sb’s deathgehört haben von; I soon got to know of all the facts/all his problemsich war bald über alle Fakten/all seine Probleme informiert; I know of him, although I’ve never met himich habe von ihm gehört, aber ich habe ihn noch nie getroffen; not that I know ofnicht, dass ich wüsste


n (Brit inf) → Alleswisser(in) m(f), → Besserwisser(in) m(f)
npraktische Kenntnis, Know-how nt; he hasn’t got the know for or to do the jober hat nicht die nötige Sachkenntnis für diese Arbeit
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[nəʊ] (knew (vb: pt) (known (pp)))
1. vt
a. (facts, dates) → sapere
to know that ... → sapere che...
to get to know sth → venire a sapere qc
to know how to do sth → saper fare qc
he knows all the answers → sa rispondere a tutte le domande (pej) → sa sempre tutto
he knows what he's talking about → parla con cognizione di causa
to know one's (own) mind → sapere ciò che si vuole
I know nothing about it → non ne so niente
there's no knowing what may happen → chissà cosa succederà
it soon became known that ... → si è presto venuto a sapere che...
to make sth known to sb → far sapere qc a qn
he is known to have been there → si sa che c'è stato
it's worth knowing what/how ... → vale la pena sapere che cosa/come ...
to know sth backwards → conoscere qc a menadito
let me know how you get on → fammi sapere come va
you know how it is → sai com'è
I knew it! → lo sapevo!
b. (be acquainted with, person, place, author, subject) → conoscere
I don't know him → non lo conosco
to know sb by sight/by name → conoscere qn di vista/di nome
to get to know sb → conoscere meglio qn
I don't know him to speak to → lo conosco solo di vista
to make o.s. known to sb → presentarsi a qn
he is known as X → è conosciuto con or sotto il nome di X
c. (recognize) → riconoscere
I knew him by his voice → l'ho riconosciuto dalla voce
she knows a good painting when she sees one → sa riconoscere un buon dipinto
to know the difference between ... → saper distinguere fra...
to know right from wrong → distinguere il bene dal male
2. visapere
as far as I know ... → che io sappia..., per quanto ne so io...
we'll let you know → le faremo sapere
how should I know? → come vuoi che lo sappia?
no, not that I know of → no, che io sappia
there's no (way of) knowing → non c'è modo di saperlo
it's not easy, you know → non è facile, sai
yes, I know → sì, lo so
I don't know → non lo so
you ought to know better (than to ...) → dovresti saperlo da solo (che non è il caso di...)
she says she didn't do it, but I know better → ha detto che non è stata lei, ma a me non la fa
he doesn't know any better → non ha criterio or giudizio
you know best → nessuno può saperlo meglio di te
(well,) what do you know! (fam) → chi l'avrebbe mai detto!
to know about or of sth → essere a conoscenza di qc
to know about or of sb → aver sentito parlare di qn
to get to know about sth → venire a sapere qc
how many "don't knows" are there? → quanti sono gli incerti?
3. n to be in the know (fam) → essere al corrente, essere beninformato/a
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


(nəu) past tense knew (njuː) : past participle known verb
1. to be aware of or to have been informed about. He knows everything; I know he is at home because his car is in the drive; He knows all about it; I know of no reason why you cannot go.
2. to have learned and to remember. He knows a lot of poetry.
3. to be aware of the identity of; to be friendly with. I know Mrs Smith – she lives near me.
4. to (be able to) recognize or identify. You would hardly know her now – she has become very thin; He knows a good car when he sees one.
ˈknowing adjective
showing secret understanding. She gave him a knowing look.
ˈknowingly adverb
1. in a knowing manner. She smiled knowingly.
2. deliberately or on purpose. He would not knowingly insult her.
ˈknow-all noun
an unkind name for a person who thinks he knows everything.
ˈknow-how noun
the practical knowledge and skill to deal with something. She has acquired a lot of know-how about cars.
in the know
having information possessed only by a small group of people. People in the know tell me that she is the most likely person to get the job.
know backwards
to know extremely well or perfectly. He knows his history backwards.
know better
to be too wise or well-taught (to do something). She should know better at her age!; He should have known better than to trust them.
know how to
to have learned the way to. She already knew how to read when she went to school.
know the ropes
to understand the detail and procedure of a job etc.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.


يَعْرِفُ vědět, znát kende, vide wissen γνωρίζω, ξέρω conocer, saber tietää, tuntea connaître, savoir poznavati, znati conoscere 知っている 알다 kennen, weten kjenne, vite wiedzieć, znać conhecer, saber знать, общаться känna, veta รู้, รู้จัก bilmek, tanımak biết 知道, 认识
Multilingual Translator © HarperCollins Publishers 2009


vi. saber, [to be acquainted] conocer;
to ___ how tosaber + inf;
to ___ oftener noticias de, estar enterado-a de.
English-Spanish Medical Dictionary © Farlex 2012
Collins Multilingual Translator © HarperCollins Publishers 2009
References in classic literature ?
"I said at the time that the only reason we took Captain Doane in with us on the deal was because we needed a navigator and because you and me didn't know the first thing about it.
However, Sam joked that he didn't know the first thing about boats even though he is skilled at motorcycles and cars.
But our apartment, like most Canadian households, was full of more or less toxic, synthetic, fragrance-ridden products, and I didn't know the first thing about how to read a label.
Example: A buddy of mine didn't know the first thing about how to do his job -- he even told me he wasn't sure why he was hired.
She didn't know the first thing about records, other than what she'd seen on a CSI episode a few years back.
"I had no plans whatsoever of being a lawyer," said Saft, who "didn't know the first thing about real estate," when he arrived at Columbia.
When her spiel ended and questioning began by city Council members, businesspeople and residents alike, it quickly became apparent that Owens didn't know the first thing about the plan Dyster credited her with conceiving.
Although they didn't know the first thing about pasta mixed with mayonnaise or canned fruit set in Jell-O, they did know that for humans to enjoy optimal health, we have to eat raw foods.
was and she didn't know the first thing about a driver or a putter but now she has one of the most envied swings in the women's golf world."

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