1a mechanical or electrical device for measuring time, indicating hours, minutes, and sometimes seconds by hands on a round dial or by displayed figures:the church clock struck four [as modifier]:a clock face
(the clock) time taken as a factor in an activity, especially in competitive sports:this stage is played against the clock
informal a measuring device such as a speedometer, taximeter, or milometer:a car with over 82,000 miles on the clock
Computing an electronic device used to initiate and synchronize internal operations.
2British a downy spherical seed head, especially that of a dandelion.
3British informal a person’s face:I thought I recognized your clock
ზმნა
Universal
1attain or register (a specified time, distance, or speed):Thomas has clocked up forty years service [no object]:this is a generous CD, clocking in at more than 60 minutes
achieve (a victory):he clocked up his first win of the year
record as attaining a specified time or rate:the tower operators clocked a gust at 185 mph
2British informal notice or watch:I noticed him clocking her in the mirror
3 informal, chiefly British hit (someone), especially on the head:someone clocked him for no good reason
4British informal wind back the milometer of (a car) illegally in order to make the vehicle appear to have travelled fewer miles than it really has:beware of motorists who clock their car before selling it (as adjective clocked)they had sold clocked vehicles
round (or around) the clock
all day and all night:I’ve got a team working around the clock [as adjective]:round-the-clock surveillance
turn (or put) back the clock
return to the past or to a previous way of doing things:we can’t turn the clock back—what’s happened has happenedno revolution can turn the clock back and abolish industry
