at

preposition (TIME)

weak /ət/ strong /æt/

Definition

A1 used to show an exact or a particular time: There's a meeting at 2.30 this afternoon. Are you free at lunchtime? In theory, women can still have children at the age of 50. The bells ring at regular intervals through the day. At no time/point did the company do anything illegal. I'm busy at the moment (= now) - can you call back later? It's a shame I wasn't here to meet you - I was in London at the time (= then).Describing when something happened or will happen

(Definition of at preposition (TIME) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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