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.

Other Words from ninety

ninetieth \ ˈnīn-​tē-​əth How to pronounce ninety (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 These recent hair tutorials are perfect for learning how to achieve some nineties styles that have made their way back into the Black hair zeitgeist in this new decade. Shalwah Evans, Essence, 22 Apr. 2020 Our fans who were with us in the nineties now have children and grandchildren. Gary Dinges, USA TODAY, 4 Apr. 2020 Her ensemble made for a modern, fresh take on the Versace dresses that supermodels wore around town during the late designer’s nineties heyday. Vogue, 7 Sep. 2019 Rogers began her music agent career in APA’s concerts department in the late nineties when now president and CEO Jim Gosnell promoted her from assistant to international agent. Taylor Mims, Billboard, 22 Jan. 2020 Now following in his mentor's footsteps, Khatskevich is the current Dynamo Kiev, but his performances as a more attacking midfielder in the late nineties made him a hugely popular figure at the club., 17 July 2019 The Taliban’s invasion of Kabul in the late nineties turned a cosmopolitan city into a ghost town, filled with Taliban fighters, Pakistani jihadists and Al-Qaeda fighters. Amrullah Saleh, Time, 28 Feb. 2020 The supporting-actor race, especially, feels like a victory lap: four actors who all won Oscars in the early nineties, plus some new guy named Brad Pitt. Michael Schulman, The New Yorker, 5 Feb. 2020 The company said its remaining ninety locations across the country will remain open. Leada Gore |, al, 27 Jan. 2020 See More

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.

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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Dictionary Entries Near ninety



ninety-day wonder

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Statistics for ninety

Cite this Entry

“Ninety.” Dictionary, Merriam-Webster, Accessed 12 Aug. 2022.

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More Definitions for ninety


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

More from Merriam-Webster on ninety

Nglish: Translation of ninety for Spanish Speakers

Britannica English: Translation of ninety for Arabic Speakers


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