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Syllabification: fif·teen
Pronunciation: /fifˈtēn
, ˈfifˌtēn

Definition of fifteen in English:

cardinal number

1Equivalent to the product of three and five; one more than fourteen, or five more than ten; 15: all fifteen species of cranes mate for life fifteen feet high fifteen of the passengers made their appearance (Roman numeral: xv or XV)
More example sentences
  • It takes five to fifteen times as much ginseng as aspirin or caffeine to produce toxicity in animals.
  • Four plus five plus three plus fifteen is less than 40; what happened to the other inmates?
  • Fourteen and fifteen seem to be as good as any at the moment.
1.1Fifteen years old: she must be fifteen by now
More example sentences
  • The definition of literacy used by the government is that one must be over the age of fifteen and capable of reading and writing.
  • Green's anthology was my introduction to Australian poetry at the age of fifteen or so, and for me it was love at first sight.
  • One in three New Zealanders aged fifteen and over has no qualification.


Old English fīftēne, fīftīene (see five, -teen).


fifteen minutes of fame

A brief period of fame that a person enjoys before fading back into obscurity.
[adapted from Andy Warhol's comment 'in the future everybody will be world famous for fifteen minutes' (1968)]
Example sentences
  • Sole survivors rarely enjoy their fifteen minutes of fame, particularly when their work covers an obscure escape.
  • He afforded everyone their fifteen minutes of fame.
  • It was (one of) my fifteen minutes of fame, and I still get a thrill seeing my name up there, even if no-one else has a clue who I am or what I did.

Definition of fifteen in:

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