First Known Use: before 12th century
Dictionary
1at
preposition \ət, ˈat\
—used to indicate the place where someone or something is
—used to indicate the person or thing toward which an action, motion, or feeling is directed or aimed
—used to indicate something that is being tried or attempted
Full Definition of AT
1
—used as a function word to indicate presence or occurrence in, on, or near <staying at a hotel> <at a party> <sick at heart>
2
—used as a function word to indicate the goal of an indicated or implied action or motion <aim at the target> <creditors are at him again>
3
—used as a function word to indicate that with which one is occupied or employed <at work> <at the controls> <good at chess>
4
—used as a function word to indicate situation in an active or passive state or condition <at liberty> <at rest>
5
—used as a function word to indicate the means, cause, or manner <sold at auction> <laughed at my joke> <act at your own discretion>
6
a —used as a function word to indicate the rate, degree, or position in a scale or series <the temperature at 90> <at first> b —used as a function word to indicate age or position in time <will retire at 65>
See at defined for English-language learners
See at defined for kids
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Origin of AT
Middle English, from Old English æt; akin to Old High German az at, Latin ad
2at
noun \ˈät\
plural at also att
Definition of AT
— see kip at money table
Variants of AT
at also att \ˈät\
Origin of AT
Lao
First Known Use: 1955
3at
abbreviation
Definition of AT
1
airtight
2
atmosphere
3
atomic
At
symbol
Definition of AT
astatine
AT
abbreviation
Definition of AT
1
air temperature
2
ampere-turn
3
automatic transmission
AT Defined for Kids
at
preposition \ət, at\
Definition of AT for Kids
1
—used to indicate a particular place or time <They're at the door.> <Be here at six.>
2
—used to indicate the person or thing toward which an action, motion, or feeling is directed or aimed <swinging at the ball> <laughed at me>
3
—used to indicate position or condition <at rest>
4
—used to tell how or why <sold at auction> <angry at his answer>
5
—used to indicate time, age, or position on a scale <ate at noon> <temperate at 90 degrees>
Medical Dictionary
at
abbreviation
Medical Definition of AT
airtight
Learn More About AT
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