| PERI | an amount of time |
|---|---|
| PERI | the end or completion of something |
| PERI | a unit of geological time during which a system of rocks formed |
| PERI | one of three periods of play in hockey games |
| PERI | the interval taken to complete one cycle of a regularly repeating phenomenon |
| PERI | a stage in the history of a culture having a definable place in space and time |
| PERI | (in games or plays or other performances) the time during which play proceeds |
| PERI | an amount of time |
| PERI | any work of art whose special value lies in its evocation of a historical period |
| PERI | recurring or reappearing from time to time |
| PERI | happening or recurring at regular intervals |
| PERI | recurring at regular intervals |