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forty

play
noun for·ty \ˈfȯr-tē\

Simple Definition of forty

  • : the number 40

  • forties : the numbers ranging from 40 to 49

  • : a set of years ending in digits ranging from 40 to 49

Full Definition of forty

plural forties

  1. 1 — see number table

  2. 2 plural :  the numbers 40 to 49; specifically :  the years 40 to 49 in a lifetime or century

  3. 3 :  the third point scored by a side in a game of tennis

for·ti·eth play \ˈfȯr-tē-əth\ adjective or noun
forty adjective
forty pronoun, plural in construction
for·ty·ish play \-tē-ish\ adjective

Examples of forty

  1. The temperature outside is in the high forties.

  2. She is in her forties.



Origin of forty

Middle English fourty, adjective, from Old English fēowertig, from fēowertig group of 40, from fēower four + -tig group of 10; akin to Old English tīen ten


First Known Use: before 12th century

Other Number-Related Terms

Rhymes with forty


FORTY Defined for Kids

1

forty

play
adjective for·ty \ˈfȯr-tē\

Definition of forty

  1. :  being four times ten




2

forty

play
noun for·ty

Definition of forty

  1. :  four times ten :  40




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