Period
Wikimedia disambiguation page

Period may refer to:
Common uses
Full stop, a punctuation mark commonly used to end a sentence (.)
Era, length or span of time
Periodization, classifying particular lengths of time into distinct historiographic or artistic periods
List of time periods
History by period
Menstruation, commonly referred to as a "period"
Arts, entertainment, and media
Period (music), concept in musical composition
Periodic sentence or rhetorical period, concept in grammar and literary style
Period drama, dramatic film or television production set in a historical period
. or Period (album), by Kesha
Period (mixtape), by City Girls
Period, novel in Dennis Cooper's George Miles cycle
Periods., comedy film series
Mathematics
In a repeating decimal, the length of the repetend
Period of a function, length or duration after which a function repeats itself
Period (algebraic geometry), numbers that can be expressed as integrals of algebraic differential forms over algebraically defined domains, forming a ring
Science
Period (gene), gene in Drosophila involved in regulating circadian rhythm
Period (periodic table), horizontal row of the periodic table
"Period-" or "per-iod-", chemical prefix where "per" refers to oxidation state and "iod" refers to iodine
Unit of time or timeframe
Period (geology), subdivision of geologic time
Period (physics), the duration of time of one cycle in a repeating event
Orbital period, the time needed for one object to complete an orbit around another
Rotation period, the time needed for one object to complete a revolution
Wavelength, the spatial period of a periodic wave
Sentence (linguistics), especially when discussing complex sentences in Latin syntax
Other uses
Period (school), block of time allocated for a specific course or other purpose
Playing period, a division of playing time in games and sport
Period (ice hockey)
Accounting period, often shortened to "period" in business, an accounting timeframe analogous to a month
Periodt, slang of period used as an interjection
See also
All pages with titles beginning with Period
All pages with titles containing Period
.
“Period” enters the record as wikimedia disambiguation page. Crown Archives preserves that source wording while asking what Period, Wikimedia and disambiguation can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q672154. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Period” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.