N. chronometry, horometry, 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, chronograph, repeater, timekeeper, timepiece, dial, sundial, gnomon, horologe, pendulum, hourglass, clepsydra, ghurry, chronographer, 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, chronogrammatical, cinquecento, quattrocento, trecento

Adv. o'clock

N. periodicity, intermittence, beat, oscillation, pulse, pulsation, rhythm, alternation, alternateness, alternativeness, alternity, bout, round, revolution, rotation, turn, say, anniversary, jubilee, centenary, catamenia, courses, menses, menstrual flux, rota, cycle, period, stated time, routine, days of the week, sunday, monday &c, months of the year, january &c, feast, fast &c, christmas, easter, new year's day &c. allhallows, allhallowmas, all saints' day, all souls', all souls' day, ash wednesday, bicentennial, birthday, bissextile, candlemas, dewali, groundhog day, halloween, hallowmas, lady day, leap year, midsummer day, muharram, woodchuck day, st. swithin's day, natal day, yearbook, yuletide, punctuality, regularity, steadiness

V. recur in regular order, recur in regular succession, return, revolve, come again, come in its turn, come round, come round again, beat, pulsate, alternate, intermit

Adj. periodic, periodical, serial, recurrent, cyclical, rhythmical, recurring, intermittent, remittent, alternate, every other, hourly, diurnal, daily, quotidian, tertian, weekly, hebdomadal|, hebdomadary|, biweekly, fortnightly, bimonthly, catamenial|, monthly, menstrual, yearly, annual, biennial, triennial, &c, centennial, secular, paschal, lenten, &c. regular, steady, punctual, regular as clockwork

Adv. periodically, at regular intervals, at stated times, at fixed established, at established periods, punctually, de die in diem, from day to day, day by day, by turns, in turn, in rotation, alternately, every other day, off and on, ride and tie, round and round