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English definition of “clock”

clock

noun (TIME)    /klɒk/ US  /klɑːk/
A1 [C] a device for measuring and showing time, usually found in or on a building and not worn by a person: We have an antique clock on our mantelpiece. The town-hall clock says (= shows that the time is) nine o'clock. I think the kitchen clock is fast/slow (= is showing a later/earlier time than it should). The clock began to strike twelve. She set her clock (= put it to the right time) by the time signal on the radio.Watches and clocks put/turn the clocks back UK (US set/turn the clocks back) to change the time on your clocks to an hour earlier, at an officially chosen time of year: Don't forget to turn the clocks back tonight.Watches and clocks put/turn the clocks forward (US also set the clocks ahead) to change the time on your clocks to an hour later, at an officially chosen time of yearThe seasons
(Definition of clock noun (TIME) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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