English dictionary



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English noun: period

1. period (time) an amount of time


SamplesA time period of 30 years.
Hastened the period of time of his recovery.
Picasso's blue period.


Synonymsperiod of time, time period


Broader (hypernym)fundamental measure, fundamental quantity


Narrower (hyponym)age, air alert, bimester, bimillenary, bimillennium, bloom, blossom, bout, bronze age, calendar day, calendar month, calendar week, canicular days, canicule, century, civil day, clotting time, continuance, dark, dawn, day, day, daylight, daytime, decade, decennary, decennium, dog days, downtime, drought, drouth, duration, duty tour, early days, efflorescence, elapsed time, enlistment, epoch, era, eve, evening, evening, extra time, festival, field day, flower, flush, forenoon, fortnight, generation, Golden Age, great year, half life, half-century, half-life, hebdomad, heyday, hitch, honeymoon, hospitalization, hour, hours, incubation period, Indian summer, indiction, iron age, lactation, lease, life, life, life, life-time, lifespan, lifetime, long haul, long run, long time, lunar time period, lustrum, mid-April, mid-August, mid-December, mid-February, mid-January, mid-July, mid-June, mid-March, mid-May, mid-November, mid-October, mid-September, midweek, midwinter, millenary, millennium, month, morn, morning, morning time, multistage, nap, night, night, night, night, nighttime, noviciate, novitiate, occupation, Olympiad, overtime, past, peacetime, peak, phase, phase of the moon, Platonic year, prehistoric culture, prehistory, prime, prohibition, prohibition era, puerperium, quadrennium, quarter, quarter-century, question time, quinquennium, rainy day, real time, real time, regulation time, reign, run, running time, Saint Martin's summer, school, school day, schooltime, season, season, season, semester, shelf life, silly season, silver age, sleep, stage, study hall, term, term of a contract, term of enlistment, test period, tide, time, time, time frame, time limit, time of life, time of year, time off, times, tour, tour of duty, travel time, trial period, trimester, twelvemonth, two weeks, uptime, usance, wartime, watch, week, week, weekend, window, work time, year, year, year, years, youth, yr


Instance hyponymBronze Age, Eolithic, Eolithic Age, Epipaleolithic, Great Schism, Iron Age, Lower Paleolithic, Mesolithic, Mesolithic Age, Middle Paleolithic, Neolithic, Neolithic Age, New Stone Age, Palaeolithic, Paleolithic, Paleolithic Age, Stone Age, Upper Paleolithic

2. period (time) the interval taken to complete one cycle of a regularly repeating phenomenon


Broader (hypernym)interval, time interval


Narrower (hyponym)orbit period

3. period (time) (ice hockey) one of three divisions into which play is divided in hockey games


Broader (hypernym)division, part, section


Part meronymperiod of play, play, playing period


Domain categoryhockey, hockey game, ice hockey

4. period (time) a unit of geological time during which a system of rocks formed


SamplesGanoid fishes swarmed during the earlier geological periods.


Synonymsgeological period


Broader (hypernym)geologic time, geological time


Narrower (hyponym)glacial epoch, glacial period, ice age


Instance hyponymAge of Fishes, Age of Man, Cambrian, Cambrian period, Carboniferous, Carboniferous period, Cretaceous, Cretaceous period, Devonian, Devonian period, Jurassic, Jurassic period, Lower Carboniferous, Lower Carboniferous period, Missippian period, Mississippian, Ordovician, Ordovician period, Pennsylvanian, Pennsylvanian period, Permian, Permian period, Quaternary, Quaternary period, Silurian, Silurian period, Tertiary, Tertiary period, Triassic, Triassic period, Upper Carboniferous, Upper Carboniferous period


Part holonymepoch


Part meronymera, geological era

5. period (time) the end or completion of something


SamplesDeath put a period to his endeavors.
A change soon put a period to my tranquility.


Broader (hypernym)end, ending


Domain usagefigure, figure of speech, image, trope

6. period (process) the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause


SamplesThe women were sickly and subject to excessive menstruation.
A woman does not take the gout unless her menses be stopped.
The semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females.


Synonymscatamenia, flow, menses, menstruation, menstruum


Broader (hypernym)discharge, emission, expelling


Narrower (hyponym)hypermenorrhea, menorrhagia, oligomenorrhea

7. period (communication) a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations


SamplesIn England they call a period a stop.


Synonymsfull point, full stop, point, stop


Broader (hypernym)punctuation, punctuation mark


Narrower (hyponym)suspension point









Based on WordNet 3.0 copyright © Princeton University.
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