#113. [Point of time] Instantaneity. —­ N. instantaneity,
instantaneousness, immediacy; suddenness, abruptness.
     moment, instant, second, minute; twinkling, trice, flash, breath,
crack, jiffy, coup, burst, flash of lightning, stroke of time.
     epoch, time; time of day, time of night; hour, minute; very minute
&c., very time, very hour; present time, right time, true time, exact correct time. 
     V. be instantaneous &c. adj.; twinkle, flash. 
     Adj. instantaneous, momentary, sudden, immediate, instant, abrupt,
discontinuous, precipitous, precipitant, precipitate; subitaneous[obs3], hasty; quick as thought, quick as lightning, quick as a flash; rapid as electricity.
     speedy, quick, fast, fleet, swift, lively, blitz; rapid (velocity)
274. 
     Adv. instantaneously &c. adj.; in no time, in less than no time;
presto, subito[obs3], instanter, suddenly, at a stroke, like a shot; in a moment &c. n. in the blink of an eye, in the twinkling of an eye, in a trice; in one’s tracks; right away; toute a l’heure[Fr]; at one jump, in the same breath, per saltum[Lat], uno saltu[Lat]; at once, all at once; plump, slap; “at one fell swoop”; at the same instant &c. n.; immediately &c. (early) 132; extempore, on the moment, on the spot, on the spur of the moment; no sooner said than done; just then; slap-dash &c. (haste) 684. 
     Phr. touch and go; no sooner said than done.

     #114. [Estimation, measurement, and record of time.] Chronometry. —­
N. chronometry, horometry[obs3], 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[obs3], chronograph; repeater; timekeeper, timepiece; dial, sundial, gnomon, horologe, pendulum, hourglass, clepsydra[obs3]; ghurry[obs3].
     chronographer[obs3], 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[obs3], chronogrammatical[obs3];
cinquecento[Fr], quattrocento[obs3], trecento[obs3]. 
     Adv. o’clock.

     #115. [False estimate of time.] Anachronism. —­ N. anachronism,
metachronism, parachronism, prochronism; prolepsis, misdate; anticipation, antichronism.
     disregard of time, neglect of time, oblivion of time.
     intempestivity &c. 135[obs3]. 
     V. misdate, antedate, postdate, backdate, overdate[obs3]; anticipate;
take no note of time, lose track of time; anachronize[obs3]. 
     Adj. misdated &c. v.; undated; overdue, past due; out of date.