Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “clock”

clock

noun uk   /klɒk/ us    /klɑːk/

clock noun (TIME)

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. 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. 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 year

clock noun (SPEED)

the clock [S] a speedometer (= a device that measures speed): I was only doing 30 mph on the clock. a milometer (= a device for recording distance travelled): My car's only got 10,000 miles on the clock.

clock

verb [T] uk   /klɒk/ us    /klɑːk/

clock verb [T] (TIME)

to take a particular time exactly to do or complete something: He clocked ten seconds in the 100 metres (= he ran it in ten seconds).

clock verb [T] (SPEED)

to show or reach a particular speed or distance on a measuring device: [+ -ing verb] The police clocked him doing 80 mph in a 50 mph area. Jim's car has clocked (up) (= travelled) 40,000 miles in less than two years.

clock verb [T] (HIT)

UK informal to hit someone, especially on the head or face: Then the other guy turned round and clocked him one (= hit him).
(Definition of clock from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of clock?
Add Cambridge dictionaries to your browser to your website

Definitions of “clock” in other dictionaries

Word of the Day

see the light of day

When something sees the light of day, it appears for the first time.

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More