nouns
an amount of time
"a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
the interval taken to complete one cycle of a regularly repeating phenomenon
is a type of (narrower)
a definite length of time marked off by two instants
(ice hockey) one of three divisions into which play is divided in hockey games
is a part of
(in games or plays or other performances) the time during which play proceeds
"rain stopped play in the 4th inning"
domain category
a game played on an ice rink by two opposing teams of six skaters each who try to knock a flat round puck into the opponents' goal with angled sticks
is a type of (narrower)
one of the portions into which something is regarded as divided and which together constitute a whole
"the written part of the exam"; "the finance section of the company"; "the BBC's engineering division"
a unit of geological time during which a system of rocks formed
"ganoid fishes swarmed during the earlier geological periods"
the end or completion of something
"death put a period to his endeavors"; "a change soon put a period to my tranquility"
domain usage
language used in a figurative or nonliteral sense
is a type of (narrower)
the point in time at which something ends
"the end of the year"; "the ending of warranty period"
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
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"