noun fif·ty \ˈfif-tē\

: the number 50

fifties : the numbers ranging from 50 to 59

: a set of years ending in digits ranging from 50 to 59

plural fifties

Full Definition of FIFTY

— see number table
plural :  the numbers 50 to 59; specifically :  the years 50 to 59 in a lifetime or century
:  a 50-dollar bill
fif·ti·eth \-tē-əth\ adjective or noun
fifty adjective
fifty pronoun, plural in construction
fif·ty·ish \-tē-ish\ adjective

Examples of FIFTY

  1. She is in her fifties.
  2. The bill for dinner came to $43, and she gave him a fifty.

Origin of FIFTY

Middle English, from fifty, adjective, from Old English fīftig, from fīftig, noun, group of 50, from fīf five + -tig group of ten; akin to tīen ten
First Known Use: before 12th century

Rhymes with FIFTY

FIFTY Defined for Kids


adjective fif·ty \ˈfif-tē\

Definition of FIFTY for Kids

:  being five times ten



Definition of FIFTY for Kids

:  five times ten :  50
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