- 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.
- time clock.
- a meter or other device, as a speedometer or taximeter, for measuring and recording speed, distance covered, or other quantitative functioning.
- biological clock.
- (initial capital letter) Astronomy. the constellation Horologium.
- Computers. the circuit in a digital computer that provides a common reference train of electronic pulses for all other circuits.
- to time, test, or determine by means of a clock or watch: The racehorse was clocked at two minutes thirty seconds.
- Slang. to strike sharply or heavily: Somebody clocked him on the face.
- clock in, to begin work, especially by punching a time clock: She clocked in at 9 on the dot.
- clock out, to end work, especially by punching a time clock: He clocked out early yesterday.
- around the clock,
- during all 24 hours; ceaselessly.
- without stopping for rest; tirelessly: working around the clock to stem the epidemic.
- clean (someone's) clock, to defeat; vanquish.
- kill the clock, Sports. to use up as much game time as possible when one is winning, as to protect a lead in basketball, ice hockey, or football.Also run out the clock.
- stop the clock, to postpone an official or legal deadline by ceasing to count the hours that elapse, as when a new union contract must be agreed upon before an old contract runs out.
Origin of clock1
- a short embroidered or woven ornament on each side or on the outer side of a sock or stocking, extending from the ankle upward.
- to embroider with such an ornament.
Origin of clock2
Examples from the Web for clock
The wine cellar—one of the best in the world—survived World War II and is guarded around the clock.Inside The World’s 10 Oldest Restaurants
December 20, 2014
They thrive on packed schedules, they say, and take pleasure in working around the clock.How the Property Brothers Became Your Mom’s Favorite TV Stars
November 25, 2014
Bill Haley had kicked rock off with “Rock Around the Clock,” but Elvis Presley made it an international phenomenon.How Rock and Roll Killed Jim Crow
October 26, 2014
She had been there as my mother and I sat with him around the clock, sleeping by his bedside, anxiously checking his vitals.Those Kansas City Blues: A Family History
October 24, 2014
“I saw many signs of hope,” he said, praising health care workers working around the clock to contain the disease.CDC: 'Window Is Closing' on Containing Ebola
September 2, 2014
The clock struck twelve, and it seemed as if it struck a thousand.Malbone
Thomas Wentworth Higginson
You may almost distinguish the figures on the clock that has just told the hour.The Haunted Mind (From "Twice Told Tales")
When supper was over and the clock had struck twelve, the party separated.Life in London
While she was ill she had watched the clock for the time to listen for him.K
Mary Roberts Rinehart
From the lower hall the clock chimed one with musical vibrations.Quaint Courtships
- 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 hoursCompare digital clock, watch (def. 7)
- any clocklike device for recording or measuring, such as a taximeter or pressure gauge
- the downy head of a dandelion that has gone to seed
- an electrical circuit that generates pulses at a predetermined rate
- computing an electronic pulse generator that transmits streams of regular pulses to which various parts of the computer and its operations are synchronized
- short for time clock
- around the clock or round the clock all day and all night
- the clock an informal word for speedometer, mileometer
- British a slang word for face
- against the clock
- under pressure, as to meet a deadline
- (in certain sports, such as show jumping) timed by a stop clockthe last round will be against the clock
- put the clock back to regress
- (tr) British, Australian and NZ slang to strike, esp on the face or head
- (tr) British slang to see or notice
- (tr) to record time as with a stopwatch, esp in the calculation of speed
- electronics to feed a clock pulse to (a digital device) in order to cause it to switch to a new state
- an ornamental design either woven in or embroidered on the side of a stocking
Word Origin and History for clock
late 14c., clokke, originally "clock with bells," probably from Middle Dutch clocke (Dutch klok) "a clock," from Old North French cloque (Old French cloke, Modern French cloche), from Medieval Latin (7c.) clocca "bell," probably from Celtic (cf. Old Irish clocc, Welsh cloch, Manx clagg "a bell") and spread by Irish missionaries (unless the Celtic words are from Latin); ultimately of imitative origin.
Replaced Old English dægmæl, from dæg "day" + mæl "measure, mark" (see meal (n.1)). The Latin word was horologium; the Greeks used a water-clock (klepsydra, literally "water thief"). Image of put (or set) the clock back "return to an earlier state or system" is from 1862. Round-the-clock (adj.) is from 1943, originally in reference to bomber air raids.
"to time by the clock," 1883, from clock (n.1). The slang sense of "hit, sock" is 1941, originally Australian, probably from earlier slang clock (n.) "face" (1923). Related: Clocked; clocking.
"ornament pattern on a stocking," 1520s, probably identical with clock (n.1) in its older sense and meaning "bell-shaped ornament."