1. an instrument for measuring and recording time, especially by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about.
2. time clock.
3. a meter or other device, as a speedometer or taximeter, for measuring and recording speed, distance covered, or other quantitative functioning.
4. biological clock.
5. the constellation Horologium.
6. the circuit in a digital computer that provides a common reference train of electronic pulses for all other circuits.

7. to time, test, or determine by means of a clock or watch: The racehorse was clocked at two minutes thirty seconds.
8. to strike sharply or heavily: Somebody clocked him on the face.
9. to identify (someone) as transgender or as the gender they were assigned at birth, especially when they do not wish to be so identified: She clocked me on our first date, but told me she was transgender too.

10. to begin work, especially by punching a time clock: She clocked in at 9 a.m. on the dot.
11. to end work, especially by punching a time clock: He clocked out early yesterday.

12. around the clock,
• during all 24 hours; ceaselessly.
• without stopping for rest; tirelessly: working around the clock to stem the epidemic.
13. defeat; vanquish.
14. to use up as much game time as possible when one is winning, as to protect a lead in basketball, ice hockey, or football.
15. to postpone an official or legal deadline by ceasing to count the hours or minutes that elapse, such as when a new union contract must be agreed upon before an old contract runs out, or when play time in a game must be interrupted for an allowable reason.

1. a short embroidered or woven ornament on each side or on the outer side of a sock or stocking, extending from the ankle upward.

2. to embroider with such an ornament.

1. a timepiece, usually free-standing, hanging, or built into a tower, having mechanically or electrically driven pointers that move constantly over a dial showing the numbers of the hours
2. any clocklike device for recording or measuring, such as a taximeter or pressure gauge
3. the downy head of a dandelion that has gone to seed
4. an electrical circuit that generates pulses at a predetermined rate
5. an electronic pulse generator that transmits streams of regular pulses to which various parts of the computer and its operations are synchronized
6. short for time clock
7. all day and all night
8. the clock an informal word for speedometer, mileometer
9. British a slang word for face
10. against the clock
• under pressure, as to meet a deadline
• (in certain sports, such as show jumping) timed by a stop clock
11. to regress

12. to strike, esp on the face or head
13. to see or notice
14. to record time as with a stopwatch, esp in the calculation of speed
15. to feed a clock pulse to (a digital device) in order to cause it to switch to a new state

1. an ornamental design either woven in or embroidered on the side of a stocking

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