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, Arbus shot in 35-mm., the format of photojournalism. Max Norman, New Yorker, 13 June 2025 His parents migrated to Dubai from the southern Indian state of Kerala in the late fifties and taught English before opening their own school in 1968. Anu Raghunathan, Forbes.com, 4 June 2025 In videos and photos on social media, Leake, now in his early fifties, had the aura of an elder-statesman goth punk. David Browne, Rolling Stone, 26 Apr. 2025 The prevalence of disability rises from less than 20% to nearly 40% between our twenties and our sixties Our fifties are a tipping point. Nancy Doyle, Forbes.com, 2 Apr. 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 17 Jun. 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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