fifty

noun

fif·​ty ˈfif-tē How to pronounce fifty (audio)
plural fifties
Synonyms of fiftynext
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.
Hershberger, who was in his early fifties, built a 30-year career from his love of music, earning a master’s degree in instrumental music education from Wichita State University in 1999. Ilana Arougheti, Kansas City Star, 15 June 2026 Just two players recorded fifties — England’s Harry Brook and Emilio Gay — and four different bowlers took five wickets or more in an innings, the first time that has happened in a Lord’s Test. Paul Newman, New York Times, 9 June 2026 By now, Robin is in his early fifties and still living in Edinburgh. Literary Hub, 9 June 2026 They were laid off in their fifties. Dwight Earl Williams, Oc Register, 4 June 2026 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 19 Jun. 2026.

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

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