· an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"

Synonym(s): time_period, period_of_time

Hypernym(s): fundamental_quantity, fundamental_measure

· the interval taken to complete one cycle of a regularly repeating phenomenon

Hypernym(s): time_interval, interval

· (ice hockey) one of three divisions into which play is divided in hockey games

Hypernym(s): part, section, division

· a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"

Synonym(s): geological_period

Hypernym(s): geological_time, geologic_time

· the end or completion of something; "death put a period to his endeavors"; "a change soon put a period to my tranquility"

Hypernym(s): end, ending

· the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; "the women were sickly and subject to excessive menstruation"; "a woman does not take the gout unless her menses be stopped"--Hippocrates; "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"--Aristotle

Synonym(s): menstruation, menses, menstruum, catamenia, flow

Hypernym(s): discharge, emission, expelling

· a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations; "in England they call a period a stop"

Synonym(s): point, full_stop, stop, full_point

Hypernym(s): punctuation, punctuation_mark