Roget's Thesaurus: Entry 114 (Estimation, measurement, and record of time)

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#114. [Estimation, measurement, and record of time.] Chronometry. -- N. chronometry, horometry[obs], horology; date, epoch; style, era.

almanac, calendar, ephemeris; register, registry; chronicle, annals, journal, diary, chronogram. [Instruments for the measurement of time]; clock, wall clock, pendulum clock, grandfather's clock, cuckoo clock, alarm clock, clock radio; watch, wristwatch, pocket watch, stopwatch, Swiss watch; atomic clock, digital clock, analog clock, quartz watch, water clock; chronometer, chronoscope[obs], chronograph; repeater; timekeeper, timepiece; dial, sundial, gnomon, horologe, pendulum, hourglass, clepsydra[obs]; ghurry[obs].

chronographer[obs], chronologer, chronologist, timekeeper; annalist.

calendar year, leap year, Julian calendar, Gregorian calendar, Chinese calendar, Jewish calendar, perpetual calendar, Farmer's almanac, fiscal year.

V. fix the time, mark the time; date, register, chronicle; measure time, beat time, mark time; bear date; synchronize watches.

Adj. chronological, chronometrical[obs], chronogrammatical[obs]; cinquecento[Fr], quattrocento[obs], trecento[obs].

Adv. o'clock.