- 1clock something to reach a particular time or speed He clocked 10.09 seconds in the 100 meters final.
- 2 to measure the speed at which someone or something is traveling clock somebody doing something The police clocked her doing over 100 miles an hour. clock somebody/something (at something) Wind gusts at 80 m.p.h. were clocked at Rapid City.
- 3clock somebody (informal) to hit someone, especially on the head Someone clocked him for no good reason. Phrasal Verbsclock inclock outclock up something
NAmE//klɑk//Verb Forms present simple I / you / we / they clock
he / she / it clocks
past simple clocked
-ing form clocking