part of speech: noun

definition: a device, other than a watch, for measuring and showing the time.

phrase: around the clock


part of speech: verb

inflections: clocks, clocking, clocked

definition: to find out the time or speed of, using a clock or watch.

  • We clocked the horse at thirty miles per hour.

synonyms: time

Word History

Clock is from a Celtic word meaning “bell.” In the 1300s, the time was announced with the sounding of a bell.