fifty

noun

fif·​ty ˈfif-tē How to pronounce fifty (audio)
plural fifties
1
: a number equal to five times 10 see Table of Numbers
2
fifties plural : the numbers 50 to 59
specifically : the years 50 to 59 in a lifetime or century
3
: a 50-dollar bill
fiftieth adjective or noun
fifty adjective
fifty pronoun, plural in construction
fiftyish adjective

Examples of fifty in a Sentence

She is in her fifties. The bill for dinner came to $43, and she gave him a fifty.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The people that sit around me are mainly blokes in their fifties and sixties. Simon Johnson, The Athletic, 23 Feb. 2025 My grandparents started with basset hounds in the fifties, and from there my parents have bred multiple different breeds. Savannah White, Glamour, 18 Feb. 2025 Picking up a beloved character in her fifties is a big task, particularly one with whom audiences fell in love in her mid-thirties. Mark Peikert, IndieWire, 17 Feb. 2025 Gary has been trying to get more support from U.S. Steel since at least the fifties. Paige Williams, The New Yorker, 10 Feb. 2025 See All Example Sentences for fifty

Word History

Etymology

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 the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of fifty was before the 12th century

Browse Nearby Words

Cite this Entry

“Fifty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fifty. Accessed 3 Mar. 2025.

Kids Definition

fifty

noun
fif·​ty ˈfif-tē How to pronounce fifty (audio)
plural fifties
: a number equal to five times 10 see number
fiftieth adjective or noun
fifty adjective or pronoun

More from Merriam-Webster on fifty

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