fif·​ty | \ ˈfif-tē How to pronounce fifty (audio) \
plural fifties

Definition of fifty

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

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Other Words from fifty

fiftieth \ ˈfif-​tē-​əth How to pronounce fiftieth (audio) \ adjective or noun
fifty adjective
fifty pronoun, plural in construction
fiftyish \ ˈfif-​tē-​ish How to pronounce fiftyish (audio) \ 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 Some were influenced by Adelle Davis, Lelord Kordel, or other health food proponents of the fifties. Ellen Fort, Sunset Magazine, "Georgia O’Keeffe’s Collection of Handwritten Recipes Sold to Yale Library," 9 Mar. 2020 But there’s no doubt about it that that over 60 — in some of the cases recently reported out of Washington state, people were in their fifties, but had additional medical conditions — have a very high spike in mortality rates. Matthew Herper, STAT, "Susan Desmond-Hellmann: The coronavirus is alarming. Here’s why you should not panic," 6 Mar. 2020 Not just throughout his fifties and sixties, but beyond. Graham Averill, Outside Online, "Eric Jackson Doesn't Believe in Getting Old," 29 June 2019 The interiors of the house, originally built as a hideaway for an Italian duchess, have splashes of fifties art and huge bedrooms with generous terraces. Ann Abel, Condé Nast Traveler, "The Best Resorts in Mexico: 2019 Readers' Choice Awards," 17 Jan. 2020 Dear San Francisco Chronicle, My mother, Jane McCoy, came to California in the late fifties., "Ode to Mom’s fruitcake," 20 Dec. 2019 Old-school dancers in their fifties bounce left to right, flipping their Matrix-style coats behind them while youngsters whip stacks of gold chains around their necks in time to the music. 1843, "Dance or die: fighting for the legacy of Bogle, the “Godfather of dancehall”," 16 Jan. 2020 The government also wants to end some of the special pension deals that allow a minority of workers to retire in their fifties. Washington Post, "No end in sight for hobbling French rail strikes after talks," 7 Jan. 2020 She’d been raised in the fifties and taught by her mother to mend clothes and look after her belongings. Greta Gerwig, Vogue, "Come As You Are," 6 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fifty.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fifty

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

History and Etymology for fifty

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

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Time Traveler for fifty

Time Traveler

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

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Statistics for fifty

Last Updated

17 Mar 2020

Cite this Entry

“Fifty.” Dictionary, Merriam-Webster, Accessed 31 Mar. 2020.

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More Definitions for fifty


How to pronounce fifty (audio)

English Language Learners Definition of fifty

: the number 50
: the numbers ranging from 50 to 59
: a set of years ending in digits ranging from 50 to 59


fif·​ty | \ ˈfif-tē How to pronounce fifty (audio) \

Kids Definition of fifty

 (Entry 1 of 2)

: being five times ten



Kids Definition of fifty (Entry 2 of 2)

: five times ten : 50

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More from Merriam-Webster on fifty

Thesaurus: All synonyms and antonyms for fifty

Rhyming Dictionary: Words that rhyme with fifty

Spanish Central: Translation of fifty

Nglish: Translation of fifty for Spanish Speakers

Britannica English: Translation of fifty for Arabic Speakers Encyclopedia article about fifty

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