Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia.


1. Being a single entity, unit, object, or living being: I ate one peach.
2. Characterized by unity; undivided: They spoke with one voice.
a. Of the same kind or quality: two animals of one species.
b. Forming a single entity of two or more components: three chemicals combining into one solution.
4. Being a single member or element of a group, category, or kind: I'm just one player on the team.
5. Being a single thing in contrast with or relation to another or others of its kind: One day is just like the next.
6. Occurring or existing as something indefinite, as in time or position: He will come one day.
7. Occurring or existing as something particular but unspecified, as in time past: late one evening.
8. Informal Used as an intensive: That is one fine dog.
9. Being the only individual of a specified or implied kind: the one person I could marry; the one horse that can win this race.
1. The cardinal number, represented by the symbol 1, designating the first unit in a series.
2. A single person or thing; a unit: This is the one I like best. Of her many books, the best ones are the last two.
3. A one-dollar bill.
1. An indefinitely specified individual: She visited one of her cousins.
2. An unspecified individual; anyone: "The older one grows the more one likes indecency" (Virginia Woolf).
at one
In accord or unity.
one and all
one by one
Individually in succession.

[Middle English on, from Old English ān; see oi-no- in Indo-European roots.]
Usage Note: In formal usage, the pronoun one is sometimes used as a generic pronoun meaning "anyone": One would hope that train service could be improved. The informal counterpart of one is you: You never know what to expect from her. Trouble arises when one is used in a series of sentences, and there is a need for a relative pronoun to refer back to one. One option is to use one and one's repeatedly, as in One tries to be careful about where one invests one's money. But in a sequence of sentences this inevitably becomes tedious. A traditional alternative has been to use he, him, and his: One tries to be careful about his investments. This has the drawback of raising the specter of gender bias. Because of these problems, the temptation may arise to switch to you, but this will undoubtedly be distracting to the reader. It is better to use the same generic pronoun throughout. · As a generic pronoun, one should be avoided as the direct object of a verb or a preposition, especially if it comes at the end of the sentence. Thus the sentence Bad dreams can make one restless may sound stilted, but One must not tease the bears or they will attack one sounds almost ungrammatical. As a subject or in the possessive form, one fares much better. One should be cordial with one's colleagues sounds somewhat formal, but is acceptable. · When constructions headed by one appear as the subject of a sentence or relative clause, there may be a question as to whether the verb should be singular or plural. The sentence One of every ten rotors was found defective is perfectly grammatical, but sometimes people use plural verbs in such situations, as in One of every ten rotors have defects. The Usage Panel has a long tradition of preferring singular verbs in such constructions. In our 1964 survey, 92 percent of the Panel preferred the singular verb in such sentences; in 2001, 99 percent preferred was found defective in the example quoted above. · Constructions such as one of those people who pose a different problem. Some critics argue that who should be followed by a plural verb in these sentences, as in He is one of those people who just don't take "no" for an answer. Their thinking is that the relative pronoun who refers to the plural noun people, not to one. They would extend the rule to constructions with inanimate nouns, as in The sports car turned out to be one of the most successful products that were ever manufactured in this country. But the use of the singular verb in these constructions is common, even among the best writers, and the Usage Panel has a long history of division on this matter. In our 1965 survey, 42 percent of the Usage Panel accepted the use of the singular verb in such constructions. Nearly forty years later the Panel's opinion was almost unchanged: in 2001, 40 percent rejected were in the sports car example quoted above. Perhaps the only workable solution to this problem lies in which word sounds most appropriate as the antecedent of the relative pronoun—one or the plural noun in the of phrase that follows it. Note also that when the phrase containing one is introduced by the definite article, the verb in the relative clause must be singular: He is the only one of the students who has (not have) already taken Latin. · Constructions using one or more or one or two always take a plural verb: One or more cars were parked in front of the house each day this week. One or two students from our department have won prizes. Note that when followed by a fraction, one ordinarily gets a plural verb: One and a half years have passed since I last saw her. The fraction rule has an exception in that amounts are sometimes treated as singular entities: One and a half cups is enough sugar. Note also that the plural rule does not apply to these one-plus-a-fraction constructions that are introduced by the indefinite article. These constructions are always singular: A year and a half has passed since I last saw her. See Usage Note at he1.
Word History: Why do we pronounce one (wŭn) and once (wŭns) while other words derived from one, like only, alone, and atone, are pronounced with a long o? Over time, stressed vowels commonly become diphthongs, as when Latin bona, the feminine singular of the adjective meaning "good," became buona in Italian and buena in Spanish. A similar diphthongization of one and once began in the late Middle Ages in the west of England and in Wales and is first recorded around 1400. The vowel sound underwent a series of changes, such that the word's pronunciation went from (ōn) to (o͞oōn), with two syllables, to (wōn) to (wo͞on) to (wo͝on) and finally to (wŭn). In southwest England, this diphthongization happened to other words beginning with the long o sound, such as oats, pronounced there now as (wŭts). Only in one and once did this diphthongal pronunciation gain widespread usage.


a. single; lone; not two or more: one car.
b. (as pronoun): one is enough for now; one at a time.
c. (in combination): one-eyed; one-legged.
a. distinct from all others; only; unique: one girl in a million.
b. (as pronoun): one of a kind.
a. a specified (person, item, etc) as distinct from another or others of its kind: raise one hand and then the other.
b. (as pronoun): which one is correct?.
4. a certain, indefinite, or unspecified (time); some: one day you'll be sorry.
5. informal an emphatic word for a1, an1: it was one hell of a fight.
6. a certain (person): one Miss Jones was named.
7. in one all in one combined; united
8. all one
a. all the same
b. of no consequence: it's all one to me.
9. at one (often foll by with) in a state of agreement or harmony
10. be made one (of a man and a woman) to become married
11. many a one many people
12. neither one thing nor the other indefinite, undecided, or mixed
13. never a one none
14. one and all everyone, without exception
15. one by one one at a time; individually
16. one or two a few
17. one way and another on balance
18. off on one informal exhibiting bad temper; ranting
19. one with another on average
20. an indefinite person regarded as typical of every person: one can't say any more than that.
21. any indefinite person: used as the subject of a sentence to form an alternative grammatical construction to that of the passive voice: one can catch fine trout in this stream.
22. archaic an unspecified person: one came to him.
23. (Mathematics) the smallest whole number and the first cardinal number; unity. See also number1
24. (Mathematics) a numeral (1, I, i, etc) representing this number
25. informal a joke or story (esp in the one about)
26. (Classical Music) music the numeral 1 used as the lower figure in a time signature to indicate that the beat is measured in semibreves
27. something representing, represented by, or consisting of one unit
28. Also called: one o'clock one hour after noon or midnight
29. a blow or setback (esp in the phrase one in the eye for)
30. (Philosophy) the one (in Neo-Platonic philosophy) the ultimate being
31. (Theology) the Holy One the One above God
32. (Theology) the Evil One Satan; the devil
[Old English ān, related to Old French ān, ēn, Old High German ein, Old Norse einn, Latin unus, Greek oinē ace]



1. being or amounting to a single unit or individual or entire thing: one child; one piece of cake.
2. being an individual instance or member of a number, kind, or group indicated: one member of the party.
3. existing, acting, or considered as a single unit or entity.
4. of the same or having a single kind, nature, or condition: of one mind.
5. denoting an unspecified day or time: one evening last week.
6. denoting some indefinite day or time in the future: You'll see him one day.
7. a certain (used in naming a person otherwise unknown or not described): One John Smith was chosen.
8. being a particular, unique, or only individual, item, or unit: the one person I can trust.
9. of no consequence as to the character, outcome, etc.; the same: It's all one to me.
10. a or an (used with intensifying force): That is one smart dog.
11. the first and lowest whole number, being a cardinal number; unity.
12. a symbol of this number, as 1 or I.
13. a single person or thing: one at a time.
14. a one-dollar bill.
15. a person or thing of a number or kind indicated or understood: one of the Elizabethan poets.
16. a person or a personified being: the evil one.
17. any person or thing indefinitely; anyone or anything: as good as one could desire.
18. something or someone of the kind just mentioned: The portraits are good ones.
19. Chiefly Brit. (used as a substitute for the pronoun I): Mother had been ill, and one should have realized it.
1. as one (man),
a. with complete accord; unanimously: They voted as one.
b. in unison.
2. at one, united in thought or feeling; attuned: to feel at one with the world.
3. for one, as an illustrative instance; for example: I, for one, refuse to go along.
4. one and all, everyone.
5. one by one, singly and successively.
[before 900; Middle English oon, Old English ān; c. Old Frisian ān, ēn, Old High German, German ein, Old Norse einn, Latin unus one, Greek oínē ace on a die]
usage: one meaning “any person indefinitely” is more formal than you, in the same sense: One (or you) should never give up hope. When the pronoun must be repeated, either one or a personal pronoun is used; the latter is more common in the U.S.: Wherever one looks, he or she finds industrial pollution. In speech or informal writing, a form of they often occurs: Can one read this without thinking of their own childhood? In the construction one of those who (or that or which), the antecedent of who is considered to be the plural form, correctly followed by a plural verb: one of those people who find fault. Yet so strong is the feeling for one as antecedent that a singular verb is commonly found in all types of writing: one of those people who finds fault. When one is preceded by only in such a construction, the singular verb is called for: the only one of her sons who visits her. See also he1, they.


a suffix used in the names of ketones and analogous chemical compounds: lactone; quinone.
[perhaps < Greek -ōnē feminine patronymic]


1. used instead of a noun phrase

You can use one instead of a noun phrase beginning with a when it is clear what sort of thing you are talking about. For example, instead of saying 'If you want a drink, I'll get you a drink', you say 'If you want a drink, I'll get you one'.

Although she wasn't a rich customer, she looked and acted like one.
The cupboards were empty except for one at the top of the bookshelves.

Be Careful!
You can't use a plural form of 'one' in this kind of sentence. Don't say, for example, 'If you like grapes, I'll get you ones'. Say 'If you like grapes, I'll get you some'.

The shelves contained Daisy's books, mostly novels but some on history and philosophy too.
We need more helicopters. There are some, but we need more.
2. used instead of a noun

You can use one or ones instead of a countable noun when the noun comes after an adjective. For example, instead of saying 'I've had this car a long time, and I'm thinking of getting a new car', you say 'I've had this car a long time, and I'm thinking of getting a new one'.

I got this trumpet for thirty pounds. It's quite a good one.
This idea has become a very popular one.
We made money from buying old houses and building new ones.

You can also use one or ones instead of a countable noun in front of a relative clause or a prepositional phrase.

Of all the subjects, science was the one I loved best.
Could I see that map again – the one with lines across it?

You can use one instead of a singular countable noun when the noun comes immediately after any determiner except 'a'. For example, instead of saying 'I bought these masks when I was in Africa. That mask came from Kenya', you say 'I bought these masks when I was in Africa. That one came from Kenya'.

We need to buy a new car. This one's too small.
He took the glasses and wrapped each one carefully.
She had a bowl of soup, then went back for another one.

Be Careful!
Don't use 'the one' in front of 'of' and a name. Don't say, for example, 'This is my mug. That's the one of Jane'. You say 'This is my mug. That's Jane's'.

He has a northern accent like Brian's.
See one - you - we - they


1. 'one'

One is sometimes an impersonal pronoun, showing that something is generally done or should generally be done.

One doesn't talk about politics at parties.

You can also use the possessive determiner one's and the reflexive pronoun oneself.

Naturally, one wants only the best for one's children.
We all understood the fear of making a fool of oneself.

One, one's, and oneself are fairly formal. Here are some other ways in which you can say that something is generally done or should be done:

2. 'you'

You can use you, your, yours and yourself, as we usually do in this book.

There are things that have to be done and you do them and you never talk about them.
Ignoring your neighbours is rude.
3. 'we'

You can use we, us, our, ours, and ourselves to say that something is generally done by a group of people that includes yourself.

We say things in the heat of an argument that we don't really mean.
There are things we can all do to make ourselves and our children happier.
4. 'they'

They can sometimes mean people in general, or a group of people whose identity is not actually stated.

They found the body in the river.

Some people use they when they are mentioning a saying or repeating a piece of gossip.

They say that the camera never lies – but it doesn't always show the full picture.
He made a fortune, they say.

They, them, their, theirs, and themselves are also used to refer to words such as everyone and anyone, person, child, and student.

5. 'people'

You can use people. This is also a fairly common use.

People shouldn't leave jobs unfinished.
I don't think people should make promises they don't mean to keep.
6. the passive

Instead of using one of these words and an active verb, you can sometimes use a passive verb. This is a fairly common use in formal writing.

If there is increasing pain, medical advice should be taken.
Bookings must be made before the end of December.
ThesaurusAntonymsRelated WordsSynonymsLegend: - the smallest whole number or a numeral representing this numberone - the smallest whole number or a numeral representing this number; "he has the one but will need a two and three to go with it"; "they had lunch at one"
digit, figure - one of the elements that collectively form a system of numeration; "0 and 1 are digits"
monas, monad - a singular metaphysical entity from which material properties are said to derive
singleton - a single object (as distinguished from a pair) - a single person or thing; "he is the best one"; "this is the one I ordered"
unit - a single undivided whole; "an idea is not a unit that can be moved from one brain to another" - used of a single unit or thingone - used of a single unit or thing; not two or more; "`ane' is Scottish"
1, ane, i
cardinal - being or denoting a numerical quantity but not order; "cardinal numbers" - having the indivisible character of a unit; "a unitary action"; "spoke with one voice"
united - characterized by unity; being or joined into a single entity; "presented a united front" - of the same kind or quality; "two animals of one species"
same - closely similar or comparable in kind or quality or quantity or degree; "curtains the same color as the walls"; "two girls of the same age"; "mother and son have the same blue eyes"; "animals of the same species"; "the same rules as before"; "two boxes having the same dimensions"; "the same day next year" - used informally as an intensifier; "that is one fine dog"
extraordinary - beyond what is ordinary or usual; highly unusual or exceptional or remarkable; "extraordinary authority"; "an extraordinary achievement"; "her extraordinary beauty"; "enjoyed extraordinary popularity"; "an extraordinary capacity for work"; "an extraordinary session of the legislature" - indefinite in time or position; "he will come one day"; "one place or another"
indefinite - vague or not clearly defined or stated; "must you be so indefinite?"; "amorphous blots of color having vague and indefinite edges"; "he would not answer so indefinite a proposal" - being a single entity made by combining separate components; "three chemicals combining into one solution"
combined - made or joined or united into one - eminent beyond or above comparisonone - eminent beyond or above comparison; "matchless beauty"; "the team's nonpareil center fielder"; "she's one girl in a million"; "the one and only Muhammad Ali"; "a peerless scholar"; "infamy unmatched in the Western world"; "wrote with unmatchable clarity"; "unrivaled mastery of her art"
incomparable, uncomparable - such that comparison is impossible; unsuitable for comparison or lacking features that can be compared; "an incomparable week of rest and pleasure"; "the computer proceeds with its incomparable logic and efficiency"; "this report is incomparable with the earlier ones because of different breakdowns of the data"


1. single, only, sole, particular, distinct, lone, solitary, singular My one regret is that I never knew my father.
1. united, combined, allied, unified, leagued, pooled, concerted, affiliated, in partnership, banded together The campaign uses the theme `Together we are one'.
get it in one guess immediately, hit the nail on the head `Is he having an affair?' - `You've got it in one.'
one by one or one at a time individually, separately, singly, one after another, in single file We went into the room one by one.
Related words
adjective single
combining forms mon(o)-, uni-


أي شَخْص، أي واحِدالرَّقْم واحدجيل السَّنَهعُمْرُه سَنَهفي نَفْس الرأي
jedenjednajedničkajednodolarovkadva zároveň
enénetmanét år
einneins árseins árs gamallí einu, á sama tímamaîur
atsitiktinis sugulovasbūti suirzusiamgaliojantis į vieną pusękelimetinukas
viensvienu gadu vecsjebkurštas, tāviena gada vecums
jedenjeden rokjedna
birbir kişi/şeybirisiinsankişi


1. (= number) → un/una; (before sing noun) → un
one manun hombre
one man out of twouno de cada dos hombres
the baby is one (year old)el bebé tiene un año
it's one (o'clock)es la una
for one reason or anotherpor diferentes razones
the last but oneel penúltimo/la penúltima
one or two peoplealgunas personas
that's one way of doing itésa es una forma or una de las maneras de hacerlo
2. (indefinite) → un/una, cierto
one dayun día, cierto día
one cold winter's dayun día frío de invierno
one hot July eveninguna tarde de julio de mucho calor
one Pérezun tal Pérez
3. (= sole) → único
his one worrysu única preocupación
the one way to do itla única forma de hacerlo
no one man could do itningún hombre podría hacerlo por sí solo
the one and only difficultyla única dificultad
the one and only Charlie Chaplinel único e incomparable Charlot
4. (= same) → mismo
all in one directiontodos en la misma dirección
it's all onees lo mismo
it's all one to meme da igual, me da lo mismo
they are one and the sameson el mismo
they are one and the same personson la misma persona
it is one and the same thinges la misma cosa
5. (= united) God is oneDios es uno
they all shouted as onetodos gritaron a una
to become onecasarse
to be one with sthformar un conjunto con algo
B. N (= figure) → uno m
I belted him onele di un guantazo
one and six(pence) (Brit) (o.f.) → un chelín y seis peniques
to be at one (with sb)estar completamente de acuerdo (con algn)
to be at one with o.sestar en paz consigo mismo
to go one better than sbtomar la ventaja or la delantera a algn
but John went one betterpero Juan lo hizo mejor
she's cook and housekeeper in onees a la vez cocinera y ama de llaves
it's made all in oneestá hecho en una sola pieza
you've got it in one!¡y que lo digas!
in ones and twosen pequeños grupos
they came in ones and twosvinieron uno a uno y en parejas
to be one up (Sport etc) → llevar un punto/gol de ventaja
that puts us one up (Sport etc) → eso nos da un punto/gol de ventaja
to be one up on sbllevar ventaja a algn
see also fast A1
see also quick A3
see also road A2
1. (indefinite) → uno/una
have you got one?¿tienes uno?
there is only one leftqueda uno solamente
his message is one of pessimismsu mensaje es pesimista, el suyo es un mensaje pesimista
one after the otheruno tras otro
one and alltodos sin excepción, todo el mundo
one by oneuno tras otro, uno a uno
I for one am not goingyo, por mi parte, no voy
not oneni uno
one of themuno de ellos
any one of uscualquiera de nosotros
he's one of the groupes del grupo, forma parte del grupo
he's one of the family nowya es de la familia
the one ..., the otheruno ..., el otro ...
you can't buy one without the otherno se puede comprar el uno sin el otro
price of oneprecio m de la unidad
two for the price of onedos por el precio de uno
one or twounos pocos
2. (specific) this oneéste/ésta
that oneése/ésa, aquél/aquélla
this one is better than that oneéste es mejor que ése
which one do you want?¿cuál quieres?
the white dress and the grey oneel vestido blanco y el gris
who wants these red ones?¿quién quiere éstos colorados?
what about this little one?¿y éste pequeñito or (esp LAm) chiquito?
that's a difficult oneésa sí que es difícil
3. (relative) the one who; the one thatel/la que
the ones who; the ones thatlos/las que
they were the ones who told usellos fueron quienes nos lo dijeron
he looked like one who had seen a ghosttenía el aspecto del que acababa de ver un fantasma
to one who can read between the linespara el que sabe leer entre líneas
the one on the floorel que está en el suelo
one more sensitive would have fainteduna persona de mayor sensibilidad se hubiera desmayado
4. (= person) he's a clever onees un taimado
he's the troublesome oneél es el revoltoso
you are a one!¡qué cosas dices/haces!
our dear onesnuestros seres queridos
the Evil Oneel demonio
you're a fine one!¡menuda pieza estás tú hecho!
he's one for the ladiestiene éxito con las mujeres
he's a great one for chesses muy bueno al ajedrez
he's a great one for arguinges de los que les encanta discutir
the little oneslos pequeños, los chiquillos
never a oneni uno siquiera
he is not one to protestno es de los que protestan
he's not much of a one for sweetsno le gustan mucho los dulces
one another they kissed one anotherse besaron (el uno al otro)
they all kissed one anotherse besaron (unos a otros)
do you see one another much?¿se ven mucho?
it's a year since we saw one anotherhace un año que no nos vemos
6. (impers) → uno/una
one never knowsnunca se sabe
one must eathay que comer
one has one's prideuno tiene cierto amor propio
one's life is not really safela vida de uno no tiene seguridad
one's opinion does not countla opinión de uno no cuenta
to cut one's fingercortarse el dedo


one minute → une minute
I've got one brother and one sister → J'ai un frère et une sœur.
one by one → un(e) à or par un(e)
in ones and twos [leave, arrive] → au compte-gouttes
one or two (= a few) → un ou deux or une ou deux
one hundred and fifty → cent cinquante
two in one → deux en un
one day (= some time in the future) → un jour
to be one up on sb → avoir l'avantage sur qn
to be at one with sb → être d'accord avec qn
I, for one, hope you don't get the job → J'espère, quant à moi, que vous ne décrocherez pas ce travail.
(= sole) → seul(e)
the one book which → le seul livre qui
the one man who → le seul (homme) qui
the one and only ... → le seul, l'unique ... or la seule, l'unique ...
(= same) → même
They came in the one car → Ils sont venus dans la même voiture.
(used instead of a noun recently mentioned)un(e)
"Do you need a stamp?" - "No thanks, I've got one." → "Est-ce que tu as besoin d'un timbre? - "Non merci, j'en ai un."
I've already got a red one
BUT J'en ai déjà un rouge.
this one → celui-ci(celle-ci)
"Which foot is hurting?" - "This one." → "Quel pied te fait mal?" - "Celui-ci."
"Which is the best photo?" - "This one." → "Quelle est la meilleure photo?" - Celle-ci."
that one → celui-là(celle-là)
"Which bag is yours?" - "That one." → "C'est lequel ton sac?" - "Celui-là."
"Which seat do you want?" - "That one." → "Quelle place voulez-vous?" - "Celle-là."
which one?
Which one do you want? → Lequel voulez-vous?
(reciprocal) to help one another → s'entraider
to love one another → s'aimer
to look at one another → se regarder
within walking distance of one another → à une petite distance l'un de l'autre
One never knows → On ne sait jamais.
(= a person) to be one for sth (a person who likes)être amateur de qch
I'm not one for political discussions → Je ne suis pas amateur de discussions politiques.
He's not one to waste time
BUT Il n'est pas du genre à perdre du bandit nbandit m manchotone-day [ˌwʌnˈdeɪ] adj [seminar, course] → d'une journéeone-day excursion n (US)billet m aller-retour valable pour la journéeone-dimensional [ˌwʌndaɪˈmɛnʃənəl] adj
[character] → simplisteone-handed [ˌwʌnˈhændɪd] advd'une (seule) mainone-hit wonder n (= song) → tube m sans lendemainOne-hundred share index nindice m Footsie des cent grandes valeursone-legged [ˌwʌnˈlɛgd] adjunijambisteone-liner [ˌwʌnˈlaɪnər] n (= joke) → bon mot mone-man [ˌwʌnˈmɔːn] adj
[business] → individuel(le)
[rule] → autocratique
[canoe] → monoplace one-man showone-man band nhomme-orchestre mone-man show none man show mone-night stand n (sex)liaison f sans lendemainone-of-a-kind [ˌwʌnəvəˈkaɪnd] adj (mainly US) (= unique) → unique en son genreone-off [ˌwʌnˈɒf] (British)
adj [benefit] → unique
a one-off payment → un paiement en une seule fois
it's a one-off (object)il n'y en a qu'un comme ça; (event)ça ne va pas se reproduireone on one one-on-one [ˌwʌnɒnˈwʌn]
adv [talk] → en tête à tête
adj [conversation] → en tête à têteone-parent family nfamille f monoparentaleone-party system nsystème m à parti uniqueone-piece [ˌwʌnˈpiːs] adj
one-piece bathing suit → maillot m une pièceone-piece swimsuit nmaillot m une pièce


(= number)ein/eine/ein; (counting) → eins; one man in a thousandeiner von tausend; there was one person too manyda war einer zu viel; one girl was pretty, the other was uglydas eine Mädchen war hübsch, das andere hässlich; she was in one room, he was in the othersie war im einen Zimmer, er im anderen; the baby is one (year old)das Kind ist ein Jahr (alt); it is one (o’clock)es ist eins, es ist ein Uhr; one hundred poundshundert Pfund; (on cheque etc) → einhundert Pfund; that’s one way of doing itso kann mans (natürlich) auch machen
(indefinite) one morning/day etc he realized …eines Morgens/Tages etc bemerkte er …; one morning next weeknächste Woche einmal morgens; one day next weeknächste Woche einmal; one day soonbald einmal; one sunny summer’s dayan einem sonnigen Sommertag
(= a certain) one Mr Smithein gewisser Herr Smith
(= sole, only) he is the one man to tell youer ist der Einzige, der es Ihnen sagen kann; no one man could do itniemand konnte es allein tun; my one (and only) hopemeine einzige Hoffnung; the one and only Brigitte Bardotdie unvergleichliche Brigitte Bardot
(= same) they all came in the one carsie kamen alle in dem einen Auto; they are one and the same persondas ist ein und dieselbe Person; it is one and the same thingdas ist ein und dasselbe; it’s all one to medas ist mir alles einerlei
(= united) God is oneGott ist unteilbar; are they one with us?sind sie mit uns eins?; we are one on the subjectwir sind uns über dieses Thema einig; they were one in wanting thatsie waren sich darin einig, dass sie das wollten; the crowd rose as onedie Menge erhob sich geschlossen
eine(r, s); the one who …der(jenige), der …/die(jenige), die …/das(jenige), das …; he/that was the oneer/das wars; do you have one?haben Sie einen/eine/ein(e)s?; the red/big etc oneder/die/das Rote/Große etc; he has some very fine oneser hat sehr Schöne; my one (inf)meiner/meine/mein(e)s; his one (inf)seiner/seine/sein(e)s; not (a single) one of them, never one of themnicht eine(r, s) von ihnen, kein Einziger/keine Einzige/kein Einziges; no one of these peoplekeiner dieser Leute; any oneirgendeine(r, s); every onejede(r, s); this onediese(r, s); that oneder/die/das, jene(r, s) (geh); which one?welche(r, s)?; the little ones (= children)die Kleinen pl; (= animals)die Jungen pl; that’s a good one (inf)der (Witz) ist gut; (iro, excuse etc) → (das ist ein) guter Witz; let’s have a quick one after work (inf)lasst uns nach der Arbeit noch kurz einen trinken gehen; I’m not one to go out oftenich bin nicht der Typ, der oft ausgeht; I’m not usually one to go out on a week night, but today …ich gehe sonst eigentlich nicht an Wochentagen aus, aber heute; I am not much of a one for cakes (inf)ich bin kein großer Freund von Kuchen (inf), → Kuchen ist eigentlich nicht mein Fall (inf); she was never one to cryWeinen war noch nie ihre Art; (but she did) → sonst weinte sie nie; he’s never one to say noer sagt nie Nein or nein; what a one he is for the girls!der ist vielleicht ein Schwerenöter! (inf); he’s a great one for discipline/turning up lateder ist ganz groß, wenns um Disziplin/ums Zuspätkommen geht; ooh, you are a one! (inf)oh, Sie sind mir vielleicht eine(r)! (inf); she is a teacher, and he/her sister wants to be one toosie ist Lehrerin, und er möchte auch gern Lehrer werden/ihre Schwester möchte auch gern eine werden; I, for one, think otherwiseich, zum Beispiel, denke anders; they came one and allsie kamen alle (ohne Ausnahme); one by oneeinzeln; one after the othereine(r, s) nach dem/der/dem anderen; take one or the othernehmen Sie das eine oder das andere/den einen oder den anderen/die eine oder die andere; you can’t have one without the otherSie können das eine nicht ohne das andere haben; one or other of them will do itder/die eine oder andere wird es tun; he’s not one of our grouper gehört nicht zu unserer Gruppe; he is one of user ist einer von uns; one who knows the countryjemand, der das Land kennt; in the manner of one who …in der Art von jemandem, der …; like one demented/possessedwie verrückt/besessen
(impers) (nom) → man; (acc) → einen; (dat) → einem; one must learn to keep quietman muss lernen, still zu sein; to hurt one’s footsich (dat)den Fuß verletzen; to wash one’s face/hairsich (dat)das Gesicht/die Haare waschen; one likes to see one’s or his (US) friends happyman sieht seine Freunde gern glücklich
n (= written figure)Eins f; Chapter oneKapitel eins; in ones and twosin kleinen Gruppen; they became onesie wurden eins; they were made onesie wurden vereint; to be at one (with somebody)sich (dat)(mit jdm) einig sein; he was at one with the worlder war mit der Welt im Einklang; he is not at one with himselfer ist mit sich selbst nicht im Reinen; it was a bedroom and sitting room (all) in onees war Schlaf- und Wohnzimmer in einem; T-shirt and shorts all in oneT-shirt und Shorts in einem Stück; I landed him one (inf)dem habe ich eine(n) or eins verpasst (inf); to be one up on somebody (inf) (= know more)jdm eins voraus sein; (= have more)jdm etwas voraushaben; Rangers were one up after the first halfRangers hatten nach der ersten Halbzeit ein Tor Vorsprung


one-armed bandit
n (inf)einarmiger Bandit
adj seminar, courseeintägig
adj (Math) → eindimensional; (fig) charactereindimensional; storyeindimensional, einfallslos
adj personeinhändig
advmit einer Hand
vehicleeinspännig; to be a one race (fig)einen sicheren Sieger haben
(inf: = inferior) one townKuhdorf nt (inf)
adj personeinbeinig
adj message etceinzeilig
n (inf)witzige Bemerkung
adjEinmann-; one canoeEinerkanu nt; one jobArbeit ffür einen Einzelnen; she’s a one womanihr liegt nur an einem Mann etwas
one-man band
nEinmannkapelle f; (fig inf)Einmannbetrieb m
one-man show
n (Art) → Ausstellung feines (einzigen) Künstlers; (Theat etc) → Einmannshow f


one-night stand
n (fig)One-Night-Stand m; (= sex also)Sex mfür eine Nacht; he’s just after a oneer sucht nur eine für eine Nacht
one-off (Brit inf)
n a oneetwas Einmaliges; that mistake etc was just a onedieser Fehler etc war eine Ausnahme
one-one, one-on-one
adj (US) = one-to-one
one-parent family
nEinelternteilfamilie f
adj (Pol) → Einparteien-; one state/systemEinparteienstaat m/-system nt
one-person household
nSingle-Haushalt m
n (= bathing costume)(einteiliger) Badeanzug, Einteiler m
attr, one-roomed
adjEinzimmer-; one flat (Brit) or apartmentEinzimmerwohnung f


adj, n (US) = one-off
adjeinseitig; judgement, account alsoparteiisch
(= between two people) conversation, meetingunter vier Augen; one teaching or tuitionEinzelunterricht m; one therapyEinzeltherapie f; one relationshipZweierbeziehung f
(= corresponding exactly) correspondence, correlationsich Punkt für Punkt entsprechend, eins zu eins; a one exchange rateein Wechselkurs mim Verhältnis eins zu eins
(= person to person) talk, discussunter vier Augen; they fought onesie kämpften einzeln gegeneinander
(= in exact correspondence)im Verhältnis eins-zu-eins
n (= conversation)Gespräch ntunter vier Augen; to have a one with somebodyein Gespräch ntunter vier Augen mit jdm führen
adj he’s got a one mindder hat immer nur das eine im Sinn or Kopf
(Boxing) → Rechts-links-Kombination f; to give somebody the old onejdm eine klassische Rechts-links-Kombination verpassen
(Ftbl) → Doppelpass m
(in race) erster und zweiter Platz für Teamkollegen
n that’s just a form of onedamit will er etc den anderen nur um eine Nasenlänge voraus sein; the game of one (hum)die Kunst, allen anderen um einen Schritt or eine Nasenlänge voraus zu sein
(= in one direction) traffic etcin einer Richtung; one streetEinbahnstraße f; one systemSystem ntvon Einbahnstraßen; one ticket (US Rail) → einfache Fahrkarte; one tripeinfache Fahrt
(= one-sided) relationship, dealeinseitig; processeinseitig, eingleisig
mirror, glassvon einer Seite durchsichtig
adjEinfrau-; one showEinfraushow f


(wan) noun
1. the number or figure 1. One and one is two (1 + 1 = 2).
2. the age of 1. Babies start to talk at one.
1. a single person or thing. She's the one I like the best; I'll buy the red one.
2. anyone; any person. One can see the city from here.
1. 1 in number. one person; He took one book.
2. aged 1. The baby will be one tomorrow.
3. of the same opinion etc. We are one in our love of freedom.
having one (of something). a one-legged man.
oneˈself pronoun
1. used as the object of a verb, the subject of which is one. One should wash oneself every morning.
2. used in emphasis. One always has to do these things oneself.
one-night ˈstand noun
(slang) a one-night sex partner; sexual intercourse with a one-night partner.
one-ˈoff noun, adjective
(something) made, intended etc for one occasion only. It's just a one-off arrangement.
one-parent ˈfamily noun
(also single parent family) a family with only a mother or a father to look after the children.
one-ˈsided adjective
1. with one person or side having a great advantage over the other. a one-sided contest.
2. representing only one aspect of a subject. a one-sided discussion.
one-ˈway adjective
1. in which traffic can move in one direction only. a one-way street.
2. (especially American) valid for travel in one direction only. a one-way ticket.
one-year-old noun
a person or animal that is one year old.
(of a person, animal or thing) that is one year old.
all one
just the same. It's all one to me what she does.
be one up on (a person)
to have an advantage over (someone). We brought out a book on this before our rivals so we're one up on them.
not be oneself
to look or feel ill, anxious etc. I'd better go home – I'm not myself today.
one and all
all (of a group). This was agreed by one and all.
one another
used as the object of a verb when an action takes place between people etc. They hit one another.
one by one
(of a number of people, things etc) one after the other. He examined all the vases one by one.
one or two
a few. I don't want a lot of nuts – I'll just take one or two.

one of is followed by a plural noun or pronoun, but takes a singular verb: One of the girls works as a hairdresser ; One of them is ill .


وَاحِدٌ jeden, jedna en einer, eins ένα, ένας uno yksi un jedan uno, 一つ 1, 하나 een en, man jeden um один, первый en, man คนหรือสิ่งหนึ่ง, หนึ่ง bir, birisi một , 一个人


n. [number] uno;
the only ___el único, la única;
the ___ I haveel que tengo;
this ___éste;
___ and alltodos;
___ of them___ de ellos;
a. un, uno-a, solo, único-a;
just ___solamente uno;
only ___ formuna sola forma;
from ___ day to anotherde un día a otro;
he is ___ good patientél es un buen paciente.
References in classic literature ?
I planned to spend mine in new music," said Beth, with a little sigh, which no one heard but the hearth brush and kettle holder.
Some were amusing, some almost beautiful, and one, a woman all drawn out of shape, hurt the old man by her grotesqueness.
One more bandage had been torn from his eyes, one more pitfall was revealed to him
Some have lost an arm, some a head, and one poor fellow is chopped off at the middle.
Now in your last one, on solitude, you haven't said anything very interesting, and you've made it too common and every-day to sound well.
One after another, several American enthusiasts rushed posthaste to Europe, with dreams of eager nations clamoring for telephone systems, and one after another they failed.
For infinitely various are the incidents in one man's life which cannot be reduced to unity; and so, too, there are many actions of one man out of which we cannot make one action.
You believe in a palace of crystal that can never be destroyed--a palace at which one will not be able to put out one's tongue or make a long nose on the sly.
The apartment destined for the purpose was spacious and lighted by a number of windows, over each of which was written in golden letters for some inexplicable reason the name of one of the principal cities of France; beneath these windows a wooden balcony extended the entire length of the house.
For, although one may be very strong in armed forces, yet in entering a province one has always need of the goodwill of the natives.
There are moments when I am glad to be alone--to grieve and repine without any one to share my sorrow: and those moments are beginning to come upon me with ever-increasing frequency.
Things are said to be opposed in four senses: (i) as correlatives to one another, (ii) as contraries to one another, (iii) as privatives to positives, (iv) as affirmatives to negatives.