Definitions:

1. a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations noun
   • in England they call a period a stop
2. a unit of geological time during which a system of rocks formed noun
   • ganoid fishes swarmed during the earlier geological periods
3. an amount of time noun
   • a time period of 30 years
4. the end or completion of something noun
   • Death put a period to my endeavors.

Synonyms:

• geological period
• menstruation
• period of time
• stop
• time period

NearBy Words:

• periodic
• periodical
• periodically
• periodicity
• periodontal
• periodontia
• periodontic
• periodontics
• periodontist
• periodontitis