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The symbol for astatine.


1. air temperature
2. ampere-turn
3. antitank
4. automatic transmission


 (ăt; ət when unstressed)
a. In or near the area occupied by; in or near the location of: at the market; at our destination.
b. In or near the position of: always at my side; at the center of the page.
2. To or toward the direction or location of, especially for a specific purpose: Questions came at us from all sides.
3. Present during; attending: at the dance.
4. Within the interval or span of: at the dinner hour; at a glance.
5. In the state or condition of: at peace with one's conscience.
6. In the activity or field of: skilled at playing chess; good at math.
7. To or using the rate, extent, or amount of; to the point of: at 30 cents a pound; at high speed; at 20 paces; at 350°F.
8. On, near, or by the time or age of: at three o'clock; at 72 years of age.
9. On account of; because of: rejoice at a victory.
10. By way of; through: exited at the rear gate.
11. In accord with; following: at my request.
12. Dependent upon: at the mercy of the court.
13. Occupied with: at work.
at it Informal
Engaged in verbal or physical conflict; arguing or fighting: The neighbors are at it again.

[Middle English, from Old English æt; see ad- in Indo-European roots.]


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.


1. used to indicate location or position: are they at the table?; staying at a small hotel.
2. towards; in the direction of: looking at television; throwing stones at windows.
3. used to indicate position in time: come at three o'clock.
4. engaged in; in a state of (being): children at play; stand at ease; he is at his most charming today.
5. (in expressions concerned with habitual activity) during the passing of (esp in the phrase at night): he used to work at night.
6. for; in exchange for: it's selling at four pounds.
7. used to indicate the object of an emotion: angry at the driver; shocked at his behaviour.
8. where it's at slang the real place of action
[Old English æt; related to Old Norse at to, Latin ad to]


(ɑːt; æt)
n, pl at
(Currencies) a Laotian monetary unit worth one hundredth of a kip
[from Thai]


the internet domain name for
(Computer Science) Austria


the chemical symbol for
(Elements & Compounds) astatine
symbol for
(Units) Also: A ampere-turn


abbreviation for
(Education) attainment target
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(æt; unstressed ət, ɪt)

1. (used to indicate a point or place occupied in space); in, on, or near: to stand at the door.
2. (used to indicate a location or position, as in time, on a scale, or in order): at age 65; at zero; at the end.
3. (used to indicate incidence or occurrence): at the sound of the bell; at low tide.
4. (used to indicate presence or location): at home; at hand.
5. (used to indicate amount, degree, or rate): at great speed; at high altitudes.
6. (used to indicate a direction, goal, or objective); toward: Look at that.
7. (used to indicate occupation or involvement): at work; at play.
8. (used to indicate a state or condition): at ease; at peace.
9. (used to indicate a cause or source): She was annoyed at their carelessness.
10. (used to indicate relative quality or value): at one's best; at cost.
[before 900; Middle English; Old English æt, c. Old Frisian et, Old Saxon, Old Norse, Gothic at, Old High German az, Latin ad]


(ɑt, æt)
n., pl. at.
a monetary unit of Laos, equal to 1/100 of a kip.
[1950–55; < Lao; ultimately < Pali aṭṭha eight]


var. of ad- before t: attend.


1. achievement test.
2. antitank.




Chem. Symbol.


1. atmosphere.
2. atomic.
3. attorney.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


The symbol for astatine.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. place or position

At is used to talk about where something is or where something happens.

There was a staircase at the end of the hallway.

You often use at to mean 'next to' or 'beside'.

He waited at the door.

You say that someone sits at a table or desk.

I was sitting at my desk, reading.

If you want to mention the building where something is or where something happens, you usually use at.

We had dinner at a restaurant in Attleborough.
He lived at 14 Burnbank Gardens, Glasgow.

In British English, you say that someone is at school or at university when you want to say that they study there.

He had done some acting at school.
After a year at university, Ben joined the army.

Speakers of American English usually say that someone is in school.

They met in high school.

You say that something happens at a meeting, ceremony, or party.

The whole family were at the funeral.
They met at a dinner party.
2. time

At is also used to say when something happens.

You use at when you are mentioning a precise time.

At 2.30 a.m. he returned.
The train leaves at 9 a.m.

If you want to know the precise time when something happened or will happen, you can say 'At what time...?' but people usually say 'What time...'' or 'When...?'

When does the boat leave?
'We're having a party on the beach.' – 'What time?' – 'At nine.'

You can say that something happened or will happen 'at dawn', 'at dusk', or 'at night'.

She had come in at dawn.
It was ten o'clock at night.

However, you say that something happened or will happen 'in the morning', 'in the afternoon', or 'in the evening'.

If something happens at a meal time, it happens while the meal is being eaten.

Let's talk about it at dinner.

You say that something happens at Christmas or at Easter.

She sent a card at Christmas.

However, you say that something happens on a particular day during Christmas or Easter.

They played cricket on Christmas Day.

In British English, at is usually used with weekend.

I went home at the weekend.

American speakers usually use on or over with weekend.

I had a class on the weekend.
What are you doing over the weekend?
Collins COBUILD English Usage © HarperCollins Publishers 1992, 2004, 2011, 2012
ThesaurusAntonymsRelated WordsSynonymsLegend: - a highly unstable radioactive element (the heaviest of the halogen series)At - a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
halogen - any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions - 100 at equal 1 kip in Laos
Laotian monetary unit - monetary unit in Laos
kip - the basic unit of money in Laos
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
إلى ، عَلىبِ ، بِ (سِعْر)عِنْدفيفي حالَة
- kor
áá, aî, í, viîá, fyrirá, í, hjá, viîá, viî, í
…-de…-de/da…-e/ade, da


N ABBR =automatic translationTA f


When at is an element in a phrasal verb, eg look at, look up the verb.
1. (position)
1.1. (specifying rough location) → en
there weren't many people at the party/lectureno había mucha gente en la fiesta/conferencia
at the hairdresser's/supermarketen la peluquería/el supermercado
at the officeen la oficina
at schoolen la escuela, en el colegio
at seaen el mar
at tableen la mesa
BUT at John's → en casa de Juan
where it's at Glasgow's where it's aten Glasgow es donde está la movida, en Glasgow es donde está el rollo (Sp)
where we're at I'll just run through where we're atte voy a poner al tanto or al corriente de cuál es la situación
1.2. (specifying position)
my room's at the back of the housemi dormitorio está en la parte de atrás de la casa
the dress fastens at the backel vestido se abrocha por detrás
at the bottom of the stairsal pie de las escaleras
to stand at the doorestar de pie or (LAm) parado en la puerta
at the edgeen el borde
my room's at the front of the housemi dormitorio está en la parte delantera de la casa
the dress fastens at the frontel vestido se abrocha por delante
at the top (gen) → en lo alto; (of mountain) → en la cumbre
to be at the windowestar junto a la ventana
he came in at the windowentró por la ventana
1.3. (esp Internet) (= name of @ symbol) → arroba f
"my e-mail address is jones at collins dot uk" ( → -mi dirección electrónica es jones arroba collins punto uk
2. (direction) (= towards) → hacia
the car was coming straight at usel coche venía directo hacia nosotros
to look at sthmirar algo
3. (time, age) → a
at four o'clocka las cuatro
at middaya mediodía
at 16 he was already a household namea los 16 años era ya un nombre muy conocido
at lunchtimea la hora de la comida, a la hora de almorzar
at an early agede pequeño/pequeña
at Christmaspor or en Navidades
at Easteren Semana Santa
at the momenten este momento
at that moment the bomb went offen aquel momento estalló la bomba
at nightde noche, por la noche
at a time like thisen un momento como éste
at my time of lifecon los años que tengo
4. (rate) → a
at 50p a kiloa 50 peniques el kilo
at 50p each(a) 50 peniques cada uno
at a high pricea un precio elevado
at 4% interestal 4% de interés
two at a timede dos en dos
to go at 100km an hourir a 100km por hora
5. (activity) he's good at gamesse le dan bien los deportes
at it while you're at it (= doing it) → de paso; (= by the way) → a propósito
she's at it againotra vez con las mismas
boys at playmuchachos que juegan, los muchachos cuando juegan
I could tell she'd been at the whiskyse notaba que le había estado dando al whisky
at waren guerra
to be at work (= working) → estar trabajando; (= in the office) → estar en la oficina
6. (manner)
acting at its bestuna actuación de antología
at peaceen paz
at a runcorriendo, a la carrera
at full speeda toda velocidad
7. (cause) to awaken at the least sounddespertarse al menor ruido
at her criesal escuchar sus gritos
at my requesta petición mía
at his suggestiona sugerencia suya
I was shocked/surprised at the newsme escandalizó/sorprendió la noticia
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


[ˈæt](STRONG) [ət] prep
(referring to position, direction)à
at the top → au sommet
at school → à l'école
at the baker's → à la boulangerie, chez le boulanger
at the office → au bureau
at the races → aux courses
at home → à la maison, chez soi
(referring to time, date) at 4 o'clock → à 4 heures
at Christmas → à Noël
at night → la nuit
at times → par moments, parfois
at the weekend
What are you doing at the weekend? → Qu'est-ce que tu fais ce week-end?
(referring to rates, speed etc)à
at £1 a kilo → une livre le kilo
two at a time → deux à la fois
at 50 km/h → à 50 km/h
at full speed → à toute vitesse
(referring to manner) at a stroke → d'un seul coup
at peace → en paix
(referring to activity) to be at work → être au travail, travailler
to play at cowboys → jouer aux cowboys
to be good at sth → être bon(ne) en qch
(referring to cause) shocked at sth → choqué(e) par qch
surprised at sth → étonné(e) de qch
annoyed at sth → agacé(e) par qch
I went at his suggestion → j'y suis allé sur son conseil
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


(position) → an (+dat), → bei (+dat); (with place) → in (+dat); at a tablean einem Tisch; at the windowam or beim Fenster; at the corneran der Ecke; at the topan der Spitze; at homezu Hause; at the university (US), at universityan or auf der Universität; at schoolin der Schule; at the hotelim Hotel; at the zooim Zoo; at my brother’sbei meinem Bruder; at a partyauf or bei einer Party; to arrive at the stationam Bahnhof ankommen; he came in at the windower ist durch das Fenster hereingekommen; the rain came in at the windowes hat durchs Fenster hineingeregnet; where are you at with your work? (inf)wie weit sind Sie mit Ihrer Arbeit?; this is where it’s at (esp US inf) → da gehts ab (sl), → da geht die Post ab (inf); he doesn’t know where he’s at (inf)der weiß ja nicht, was er tut (inf)
(direction) to aim/shoot/point etc at somebody/somethingauf jdn/etw zielen/schießen/zeigen etc; to look/growl/swear etc at somebody/somethingjdn/etw ansehen/anknurren/beschimpfen etc; at him!auf ihn!
(time, frequency, order) at ten o’clockum zehn Uhr; at night/dawnbei Nacht/beim or im Morgengrauen; at Christmas/Easter etczu Weihnachten/Ostern etc; at your age/16 (years of age)in deinem Alter/mit 16 (Jahren); three at a timedrei auf einmal; at the start/end of somethingam Anfang/am Ende einer Sache (gen)
(activity) at playbeim Spiel; at workbei der Arbeit; good/bad/an expert at somethinggut/schlecht/ein Experte in etw (dat); his employees/creditors are at himseine Angestellten/Gläubiger setzen ihm zu; while we are at it (inf)wenn wir schon mal dabei sind; the couple in the next room were at it all night (inf)die beiden im Zimmer nebenan haben es die ganze Nacht getrieben (inf); the brakes are at it again (inf)die Bremsen mucken schon wieder (inf)
(state, condition) to be at an advantageim Vorteil sein; at a loss/profitmit Verlust/Gewinn; I’d leave it at thatich würde es dabei belassen ? best, worst, that1
(= as a result of, upon)auf (+acc)… (hin); at his requestauf seine Bitte (hin); at her deathbei ihrem Tod; at that/this he left the roomdaraufhin verließ er das Zimmer
(cause: = with) angry, annoyed, delighted etcüber (+acc)
(rate, value, degree) at full speed/50 km/hmit voller Geschwindigkeit/50 km/h; at 50p a poundfür or zu 50 Pence pro or das Pfund; at 5% interestzu 5% Zinsen; at a high/low pricezu einem hohen/niedrigen Preis; when the temperature is at 90wenn die Temperatur bei or auf 90 ist; with inflation at this levelbei so einer Inflationsrate ? all, cost, rate1
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


(ӕt) preposition
1. position. They are not at home; She lives at 33 Forest Road
2. direction. He looked at her; She shouted at the boys.
3. time. He arrived at ten o'clock; The children came at the sound of the bell.
4. state or occupation. The countries are at war; She is at work.
5. pace or speed. He drove at 120 kilometres per hour.
6. cost. bread at $1.20 a loaf.
at all
in any way. I don't like it at all.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.


عِنْد v ved an σε a à kod a ・・・に ...에서 bij ved przy em у ที่ de, da tại
Multilingual Translator © HarperCollins Publishers 2009
Collins Multilingual Translator © HarperCollins Publishers 2009