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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