| period | |
| 1. subst. A length of time. | |
| There was a period of confusion following the announcement. | |
| You'll be on probation for a six-month period. | |
| 2. subst. A period of time in history seen as a single coherent entity; an epoch, era. | |
| Food rationing continued in the post-war period. | |
| 3. subst. (now chiefly North America) The punctuation mark “.” (indicating the ending of a sentence or marking an abbreviation). | |
| 4. subst. The length of time during which the same characteristics of a periodic phenomenon recur, such as the repetition of a wave or the rotation of a planet. | |
| 5. subst. Female menstruation. | |
| When she is on her period, she prefers not to go swimming. | |
| 6. subst. A section of an artist's, writer's (etc.) career distinguished by a given quality, preoccupation etc. | |
| This is one of the last paintings Picasso created during his Blue Period. | |
| 7. subst. Each of the divisions into which a school day is split, allocated to a given subject or activity. | |
| I have math class in second period. | |
| 8. subst. (chiefly North America) Each of the intervals into which various sporting events are divided. | |
| Gretzky scored in the last minute of the second period. | |
| 9. subst. (obsolete, medicine) The length of time for a disease to run its course. | |
| 10. subst. An end or conclusion; the final point of a process etc. | |
| 11. subst. (rhetoric) A complete sentence, especially one expressing a single thought or making a balanced, rhythmic whole. | |
| 12. subst. (obsolete) A specific moment during a given process; a point, a stage. | |
| 13. subst. (chemistry) A row in the periodic table of the elements. | |
| 14. subst. (geology) A subdivision of an era, typically lasting from tens to hundreds of millions of years, see. | |
| 15. subst. (genetics) A Drosophila gene, the gene product of which is involved in regulation of the circadian rhythm. | |
| 16. subst. , date=20 November 2009 | |
| 17. subst. , url=http://flybase.org/reports/FBgn0003068.html | |
| 18. subst. , title=Gene Dmel\per, format=Gene Report (database record) | |
| 19. subst. , work=FlyBase, publisher=The FlyBase Consortium | |
| 20. subst. , language=en, accessdate=7 December, accessyear=2009 | |
| 21. subst. (music) Two phrases (an antecedent and a consequent phrase). | |
| 22. subst. (math) The length of an interval over which a periodic function, periodic sequence or repeating decimal repeats; often the least such length. | |
| 23. subst. (archaic) End point, conclusion. | |
| a period car | |
| a period TV commercial | |
| 24. adj. Evoking, or appropriate for, a particular historical period, especially through the use of elaborate costumes and scenery. | |
| 25. interj. (chiefly North America) That's final; that's the end of the matter (analogous to a period ending a sentence). | |
| I know you don't want to go to the dentist but your teeth need to be checked, period! | |
| 26. v. (obsolete, intransitive) To come to a period; to conclude. | |
| 27. v. (obsolete, transitive, rare) To put an end to. | |
