(in games or plays or other performances) the time during which play proceeds | a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations |
| the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause |
| an amount of time |
| the interval taken to complete one cycle of a regularly repeating phenomenon |
| a unit of geological time during which a system of rocks formed |
| the end or completion of something |
| (ice hockey) one of three divisions into which play is divided in hockey games |