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.
In the late fifties and early sixties the Method was the rage, especially among the young actors of about Willy’s age, who all idolized Marlon Brando and would go on to transform American cinema in a few years: Warren Beatty, Al Pacino, Dustin Hoffman, and so on. Benjamin Hale june 23, Literary Hub, 23 June 2025 An ex-marine officer during the late fifties, his business leadership style was swashbuckling, colorful, and highly focused. Chip Bell, Forbes.com, 18 June 2025 On Instagram, Schmitt shares clips from her longer videos and some original content as well — including OOTD posts and sneak-peeks into her own fabulous fifties. Carmen Rios, Flow Space, 7 July 2025 His overseas average in New Zealand, South Africa, Australia and England comes to just under 26 with two fifties in 11 Tests. Tim Ellis, Forbes.com, 19 June 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 22 Jul. 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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