PERIOD — СИНОНІМІЯ
period a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations
WordNet
period the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
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period an amount of time
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period a unit of geological time during which a system of rocks formed
WordNet
period a stage in the history of a culture having a definable place in space and time
WordNet