[ fif-teen ]
/ ˈfɪfˈtin /


a cardinal number, ten plus five.
a symbol for this number, as 15 or XV.
a set of this many persons or things.


amounting to 15 in number.

Origin of fifteen

before 900; Middle English, Old English fiftene. See five, -teen Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fifteen

British Dictionary definitions for fifteen (1 of 2)


/ (ˈfɪfˈtiːn) /


the cardinal number that is the sum of ten and five
a numeral, 15, XV, etc, representing this number
something represented by, representing, or consisting of 15 units
a rugby union football team


  1. amounting to fifteenfifteen jokes
  2. (as pronoun)fifteen of us danced

Word Origin for fifteen

Old English fīftēne

British Dictionary definitions for fifteen (2 of 2)


/ (ˈfɪfˈtiːn) /


the Fifteen British history the Jacobite rising of 1715
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fifteen



Old English fiftyne, from fif "five" (see five) + tyne (see -teen). Cf. Old Saxon fiftein, Old Frisian fiftine, Old Norse fimtan, Swedish femton, Dutch vijftien, German fünfzehn, Gothic fimftaihun "fifteen." French quinze, Italian quindici "fifteen" are from Latin quindecim (see Quatorze).

Online Etymology Dictionary, © 2010 Douglas Harper