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cloaca
cloak
cloak-and-dagger
cloak fern
cloakroom
clobber
clobbering machine
cloche
clock (1)
clock (2)
clock in
clock out
clock radio
clock speed
clock up
clock-watcher
clockwise
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clock (1)

clock [ klok ]


noun  (plural clocks)
Definition:
 
1. device displaying time: a freestanding device that measures and records time, which it displays by a pointer on a dial or by a digital readout

2. measuring instrument with display: a measuring instrument with a dial or a digital display, e.g. any of a vehicle's control gauges, especially the odometer

3. business 
Same as  time clock


4. electronic circuit that synchronizes computer processes: an electronic circuit that generates pulses at a constant rate in order to synchronize the internal operations in a computer

5. seed head of dandelion: the fluffy white seed head of a dandelion

6.  ( informal )
Same as  biological clock




transitive verb  (past and past participle clocked, present participle clock·ing, 3rd person present singular clocks)
Definition:
 
1. measure time somebody or something takes: to measure or record the time somebody or something takes, using a stopwatch or an electronic timing device ( informal )
a car that was clocked at 95 mph

2. punch somebody: to punch somebody ( slang )

[14th century. Via Middle Dutch, Middle Low German klocke< medieval Latin clocca "bell"]

against the clock with limited time to finish something

around or round the clock day and night, without stopping

turn or put the clock(s) back to return to the conditions of an earlier time

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