nine·​ty | \ ˈnīn-tē How to pronounce ninety (audio) \
plural nineties

Definition of ninety

1 : a number equal to nine times 10 — see Table of Numbers
2 nineties plural : the numbers 90 to 99 specifically : the years 90 to 99 in a lifetime or century She's in her nineties.

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Other Words from ninety

ninetieth \ ˈnīn-​tē-​əth How to pronounce ninetieth (audio) \ adjective or noun
ninety adjective
ninety pronoun, plural in construction

Examples of ninety in a Sentence

During the nineties, he was going to college and working part-time.
Recent Examples on the Web The company said its remaining ninety locations across the country will remain open. Leada Gore |, al, "Bar Louie files for bankruptcy, closes Alabama location," 27 Jan. 2020 After spending the nineties as a contract developer and IT worker for Seattle tech companies, Rae became a clinical social worker. David Kushner, Outside Online, "Can Video Games Replace the Outdoors?," 8 Oct. 2019 Abdullah also came in handy to New Delhi through the nineties, to fend off international scrutiny of the human rights situation in Kashmir. Riyaz Wani, Quartz India, "Farooq Abdullah once defended India amid global backlash on Kashmir. Now, he has to defend himself," 19 Sep. 2019 Longchamp Le Pliage Tote Bag Longchamp’s oversized tote is the OG collapsable bag—it's been around since the nineties, and it's amassed a robust worldwide following since. Megan Spurrell, Condé Nast Traveler, "7 Fold-Up Bags for Bringing All Your Souvenirs Home," 10 Sep. 2019 In the eighties and nineties, Gotham’s owners sought to class up the neighborhood with white tablecloths and the chef Alfred Portale’s tuna tartare. Hannah Goldfield, The New Yorker, "Gotham’s Ladies Who Lunch, Three Decades In," 27 Dec. 2019 The woman, who was in her nineties, had moved to a retirement home and was taking inventory of her house when an auctioneer spotted the painting, the BBC reported. Ryan W. Miller, USA TODAY, "France blocks export of rare, $26 million painting discovered in elderly woman's kitchen," 24 Dec. 2019 American teachers of the 1980s and nineties like Phillips, many with little to no background in the field, introduced computer science to a generation of students that would go on to shape the World Wide Web. Chris Zarate, Quartz, "The key to helping kids learn problem solving is a computer science class," 15 Oct. 2019 Think of the kk tutorial not as a gripe to be accommodated, but as a somewhat boring cultural fact with no direct influence on your life, like how John Adams and George H.W. Bush both lived to their nineties. Caity Weaver, New York Times, "Typing These Two Letters Will Scare Your Young Co-Workers," 21 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ninety.' 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 ninety

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

History and Etymology for ninety

Middle English ninety, adjective, from Old English nigontig, short for hundnigontig, from hundnigontig, noun, group of 90, from hund-, literally, hundred + nigon nine + -tig group of 10; akin to Old English tīen ten

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Time Traveler for ninety

Time Traveler

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

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Statistics for ninety

Last Updated

21 Feb 2020

Cite this Entry

“Ninety.” Dictionary, Merriam-Webster, Accessed 28 Feb. 2020.

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More Definitions for ninety


How to pronounce ninety (audio)

English Language Learners Definition of ninety

: the number 90
: the numbers ranging from 90 to 99
: a set of years ending in digits ranging from 90 to 99


nine·​ty | \ ˈnīn-tē How to pronounce ninety (audio) \

Kids Definition of ninety

 (Entry 1 of 2)

: being nine times ten



Kids Definition of ninety (Entry 2 of 2)

: nine times ten : 90

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More from Merriam-Webster on ninety

Spanish Central: Translation of ninety

Nglish: Translation of ninety for Spanish Speakers

Britannica English: Translation of ninety for Arabic Speakers

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