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• at
  at

  preposition

  (used to indicate a point or place occupied in space); in, on, or near.
• At
  At

  abbreviation

  ampere-turn.
• AT
  AT

  abbreviation

  achievement test.
• aT
  aT

  abbreviation

  attotesla.
• at-
  at-

  variant of ad- before t: attend.
• at.
  at.

  abbreviation

  atmosphere.
• A.T.
  A.T.

  abbreviation

  Atlantic time.

at

¹ American  

[at, uht, it] / æt, ət, ɪt /

preposition

1. (used to indicate a point or place occupied in space); in, on, or near.

   to stand at the door;

   at the bottom of the barrel.

2. (used to indicate a location or position, as in time, on a scale, or in order).

   at zero;

   at noon;

   at age 65;

   at the end;

   at the lowest point.

3. (used to indicate presence or location).

   at home;

   at hand.

4. (used to indicate amount, degree, or rate).

   at great speed;

   at high altitudes.

5. (used to indicate a direction, goal, or objective); toward.

   Aim at the mark.

   Look at that.

6. (used to indicate occupation or involvement).

   at work;

   at play.

7. (used to indicate a state or condition).

   at ease;

   at peace.

8. (used to indicate a cause or source).

   She was annoyed at his stupidity.

9. (used to indicate a method or manner).

   He spoke at length.

10. (used to indicate relative quality or value).

    at one's best;

    at cost.

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noun

1. @, a symbol that is used in email addresses to link a username to a domain name, used at the beginning of Twitter handles, and in other identifying designations on the internet.

verb (used with object)

@ed, at-ed, @ing, at-ing

1. (on social media)

   1. to tag an account that begins with the symbol @, resulting in a link to that account’s profile and a notification to the user that their account has been explicitly mentioned in someone else’s post.

      One big celebrity at-ed the restaurant, and suddenly reservations were booked for the next six weeks.

   2. to include or involve someone, or to call a person out, especially when that person does not want to be involved or singled out.

      My opinions are my own, so please don’t at my employer about the stuff I write on this site.

   3. to argue with someone, or dispute someone’s stated views, especially on social media.

      The sequel was better than the original—don’t at me!

idioms

1. where it's at, the place where the most interesting or exciting things happen.

   Emma says that Rome is definitely where it's at now.

2. be at (someone), to be sexually aggressive toward (a person).

   She's pregnant again because he's at her morning, noon, and night.

at ² American  

[aht, at] / ɑt, æt /

Or att

noun

• at,
  plural
• ats
  plural

1. a money of account of Laos, one 100th of a kip.

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At ³ American  

abbreviation

1. ampere-turn.

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At ⁴ American  

Symbol, Chemistry.

1. astatine.

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AT ⁵ American  

abbreviation

1. achievement test.

2. antitank.

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aT ⁶ American  

abbreviation

1. attotesla.

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at- ⁷ American  

1. variant of ad- before t: attend.

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at. ⁸ American  

abbreviation

1. atmosphere.

2. atomic.

3. attorney.

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A.T. ⁹ American  

abbreviation

1. Atlantic time.

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at ¹ British  

/ æt /

preposition

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. slang the real place of action

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At ² British  

symbol

1. astatine

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symbol

1. Also: A. ampere-turn

at. ³ British  

abbreviation

1. Also: atm. atmosphere (unit of pressure)

2. atomic

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AT ⁴ British  

abbreviation

1. attainment target

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at ⁵ British  

/ ɑːt, æt /

noun

1. a Laotian monetary unit worth one hundredth of a kip

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at ⁶ British  

abbreviation

1. Austria

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Other Word Forms

Noun Inflected Forms

• at
  plural
• ats
  plural

Etymology

Origin of at¹

First recorded before 900; Middle English; Old English æt; cognate with Old Frisian et, Old Norse, Old Saxon, Gothic at, Old High German az, Latin, Old Welsh, Old Breton ad, Oscan ad-, Umbrian ař-, Old Irish, Gaulish, Phrygian ad-

Origin of at²

First recorded in 1950–55; from Lao; compare Thai ʔàt formerly, a copper coin worth one eighth of a füang, ultimately from Pali aṭṭha eight

Example Sentences

See Examples For:

at At AT aT at- at. A.T. ats @ed @ing

It was hard to predict how the center fielder would look at the plate when he returned from a fracture in his left hand.

From Los Angeles Times ● Sep. 30, 2026

Jeannie Paterson from the Centre for Artificial Intelligence and Digital Ethics at the University of Melbourne said self-regulation could mean that companies set "only minimal safeguards".

From BBC ● Sep. 30, 2026

Ozone pollution is linked to 60,000 premature deaths per year in Europe, Ian Marnane, an official at the European Environment Agency, told a media briefing.

From Barron's ● Sep. 30, 2026

A magnitude 3.8 earthquake was reported at 8 p.m.

From Los Angeles Times ● Sep. 30, 2026

Meanwhile, Joey has become an expert at writing reports and delivering messages.

From "At Last She Stood" by Erin Entrada Kelly

At the end of June, shares in U.S. companies that had gone public this year were up 24% on average from their IPO prices, according to Dealogic.

From The Wall Street Journal ● Sep. 30, 2026

At present, no one has been named so we do not know the position of the people the ruling referred to.

From BBC ● Sep. 29, 2026

At the heart of the issue is Metro Little League’s relationship with the Metro Baseball Academy, a separate nonprofit that runs clinics, or training programs, for league players who pay to participate.

From Los Angeles Times ● Sep. 29, 2026

At a summit last week, both countries agreed to share information about AI incidents that would pose national-security implications without providing specifics.

From The Wall Street Journal ● Sep. 29, 2026

At first, you can’t believe that the stories are real in a place without magic, but it’s hard to deny your own eyes.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

"After AI and tech sentiment had dominated market moves over the last couple of weeks, investors are now forced to move back to focusing on geopolitical tensions," AT Global Markets' Nick Twidale said.

From Barron's ● Jul. 8, 2026

Andersen Group is a holding company with just one significant asset: an 11% stake in a partnership called AT Umbrella, which owns Andersen Tax and other operating subsidiaries.

From The Wall Street Journal ● Dec. 29, 2025

The event, named AT 2024tvd, exhibited the fastest-changing radio emission ever recorded from a black hole consuming a star.

From Science Daily ● Oct. 16, 2025

Two days ago, Harris posted a photo on Snapchat showing his left eye completely shut, captioned: “WE AT IT.”

From Los Angeles Times ● Aug. 8, 2025

For various practical and historical reasons, the AT goes nowhere near them.

From "A Walk in the Woods" by Bill Bryson

Find aT and aN as functions of t.

From Textbooks ● Mar. 30, 2016

The tangential and normal components of acceleration aT and aN are the projections of the acceleration vector onto the unit tangent and unit normal vectors to the curve.

From Textbooks ● Mar. 30, 2016

We write aT to denote the tangential component and aN to denote the normal component.

From Textbooks ● Mar. 30, 2016

Find aT and aN at time t = −3.

From Textbooks ● Mar. 30, 2016

Put together some good at- bats, but we weren’t quite able to finish it,” Padres starter Seth Lugo said.

From Washington Times ● Jul. 17, 2023

Ehire Adrianza lined out to left before Floro struck out Grissom in a 13-pitch at- bat for his 10th save.

From Seattle Times ● Oct. 5, 2022

Joc Pederson contributed two hits and is seven for his last 13 at- bats.

From Los Angeles Times ● May 28, 2015

All New York Times executives are at- will employees.

From Reuters ● Aug. 17, 2012

Th- th- there is an a- a- at- atmosphere here li- li- like th- th- that of the cata- catacombs, like that in the document room of the former Cha-Cha-Chamber of Justice at Wetzlar.

From The Awakening of Spring A Tragedy of Childhood by Frank Wedekind

When asked to describe their current working relationship, Belichick said, “There are some things that she helps me schedule or look at. It’s not North Carolina stuff.”

From The Wall Street Journal ● Sep. 16, 2026

"It doesn't guarantee us success but it's a first real test of where we're at. I'm quietly confident we're going to see some exciting cricket."

From BBC ● Jun. 15, 2026

“Offense is offense, but defense is really where it’s at. And today, I think we did a really good job of not leaving any gas in the tank on the defense end.”

From Los Angeles Times ● Jun. 8, 2026

"The smell is awful, very pungent. It is also unpleasant to look at. It looks filthy," said Nurhasanah, who like many Indonesians only has one name.

From Barron's ● Feb. 17, 2026

“We’re both new to this town and we’d like to know who you were staring at. It’s important.”

From "Thirteen Reasons Why" by Jay Asher

“The president or protectee is never exposed to the outside,” said A.T.

From The Wall Street Journal ● Apr. 27, 2026

The blocked punt set up Carr’s 35-yard touchdown pass to A.T.

From Los Angeles Times ● Dec. 21, 2023

After Derek Carr was forced out in the third quarter with a concussion and a shoulder injury, Winston entered with a 27-3 deficit and delivered touchdown passes to Chris Olave and A.T.

From Seattle Times ● Nov. 12, 2023

That’s why Clawson has confidence despite losing a talent like two-time 1,000-yard receiver A.T.

From Washington Times ● Aug. 16, 2023

A.T. was his chem lab partner this past semester.

From "Dear Martin" by Nic Stone

Sho sez at high class ats laid dahn all th’ brass,    Just nah they’re beginnin ta craw; To mak up for th’ trouble they’re bahn to charge double,    For bad speckulashun it law.

From Random Rhymes and Rambles by William Aldis Wright

Work or do, to, chai; I work, ats chái or cháit-sen; thou workest, nuk'w chái or chái-uts-hu; he works, kw'sá chai; we work, nung'l tsá-chái; ye work, nuk'w't-sa ái-a-chái; they work, tsâ-tsa chi´chai.

From Alphabetical Vocabularies of the Clallum and Lummi by George Gibbs

The little children scattered calico flowers on their path, the snowy-aired old men with red faces and rinkles took off their brown paper ats to slewt the noble Marcus.

From Burlesques by William Makepeace Thackeray

Men waved their ats and umbrellas, ladies, of whom there were many hundreds present, waved their handkerchiefs, and men, strangers to each other, shook hands with the fervency of brotherhood.

From The Works of Robert G. Ingersoll, Vol. 8 (of 12) Dresden Edition?Political by Robert Green Ingersoll

In the Tsimshian, Kwakiutl, Nootka, Ntlakyapamuq, four Indian languages of British Columbia, the words for "father" when addressed, are respectively a'bo, ats, no'we, pap, and for "father" in other cases, nEgua'at, au'mp, nuwe'k'so, ska'tsa.

From The Child and Childhood in Folk-Thought Studies of the Activities and Influences of the Child Among Primitive Peoples, Their Analogues and Survivals in the Civilization of To-Day by Alexander F. Chamberlain

But she also did it on Twitter and @ed Powers.

From Los Angeles Times ● Sep. 6, 2019

You’ll be able to search for files you have stored in the cloud by @ing them.

From The Verge ● May 18, 2022

The system of followers, @ing and threading encourages sprawling conversations to develop from initial tweets, favouring constant interaction.

From The Guardian ● Aug. 23, 2019

Relieve yourself of this outrageous expectation, and stop @ing famous people who don’t know you if it’s going to get you all steamed up when they continue living their lives without you in it.

From Slate ● May 2, 2016