What does at mean?
"At" is one of the most essential and heavily used prepositions in English, serving primarily to mark a precise point — whether in space, in time, in a state or condition, or as the target of an action or emotion. We wait at a bus stop, dine at seven o'clock, find ourselves at ease, and shout at a referee. Unlike vaguer prepositions such as "in" or "on," which suggest enclosure or surface, "at" pinpoints a single location or moment, which makes it indispensable for precision in both everyday speech and formal writing. It also anchors hundreds of fixed expressions — at least, at last, at once — that give English much of its rhythm and idiom. Derived from ancient Germanic roots, this tiny two-letter word has remained remarkably stable for over a thousand years, and it gained unexpected modern fame through the @ symbol, whose very name is "at."
Used to indicate a specific location, point in time, state or condition, or the target of an action or feeling.
"The meeting begins at nine o'clock sharp."
"At" typically denotes a point rather than an area (compare "in") or a surface (compare "on").
Used to indicate direction toward or focus on something, often with verbs of motion or emotion.
"He threw the keys at his brother in frustration."
Informal shorthand for the @ sign or the concept of an email address, as in giving out your contact details.
"You can reach me at gmail dot com — just my name, then at."
Colloquial usage arising from email addresses; not used in formal writing.
The humble preposition "at" became world-famous when it lent its name to the @ symbol — now the signature of every email address on Earth.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of at
"At" comes from Old English "æt," meaning "by, near, at," which traces back to Proto-Germanic *"at." It is closely related to Old Norse "at" and other Germanic cognates, reflecting a root shared across the Germanic language family. The word has changed remarkably little in form and function over more than a millennium of recorded English.
Related word forms
How at is actually used
"At" is among the most frequently used words in English and appears in countless fixed expressions. Choosing between "at," "in," and "on" for places and times follows idiomatic convention: "at" marks a precise point (at midnight, at the door), while "in" and "on" suggest containment or surface.
Easily confused with at
"At" is a preposition indicating place, time, or target, while "a" is an indefinite article meaning "one of many."