nine·​ty | \ ˈnīn-tē \
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 \ 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 silhouettes evolved over the years, from formfitting dresses in the sixties to eccentric caftans in the nineties, but her joyful, luxurious approach to dressing remained, emphasizing Franklin's star power. Halie Lesavage, Glamour, "Remembering Aretha Franklin: A Look Back at Her Most Iconic Fashion Moments," 16 Aug. 2018 News broke on Thursday, October 25, that a remake of the seminal nineties movie Clueless is currently in development. Abby Gardner, Glamour, "A Clueless Remake Is Officially in the Works—and People Have Thoughts," 26 Oct. 2018 But The Girl—overall very nineties low-key, clubby music. Kerry Pieri, Harper's BAZAAR, "Derek Lam's Holiday Entertaining Musts," 8 Dec. 2014 Joining them on their 53-city concert series will be fellow nineties legends Salt-N-Pepa, Naughty by Nature, Debbie Gibson, and Tiffany. Kayla Keegan, Good Housekeeping, "Your Step-by-Step Guide to Getting New Kids on the Block Tour Tickets," 8 Oct. 2018 This article was originally posted on August 15, 2017 In the nineties, best friends would express their love for each other with matching broken heart necklaces. Devon Abelman, Allure, "Dose of Colors Is Dropping a Second Desi x Katy Collection on September 24," 17 Sep. 2018 Rummer and his wife Phyllis, now in their nineties, are fixtures of Oregon architectural history: In the 1950s, Robert Rummer was an insurance adjuster who dabbled in design. Samantha Weiss Hills, Curbed, "A Portland couple trades in a farmhouse for their midcentury dream home," 27 Aug. 2018 Food bears zero resemblance to the boxes of communal granola backpackers shared before hitting the Eiffel Tour in the nineties. Erin Florio, Condé Nast Traveler, "Generator, Europe's Hostel for Grown-Ups, Is Opening Soon in Miami," 26 July 2018 So not only are these movies sticking, their lead actors are turning into bonafide superstars—much like what happened to rom-com queen Julia Roberts in the nineties. Christopher Rosa, Glamour, "Netflix Is Making the Rom-Com Cool Again," 10 July 2018

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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Statistics for ninety

Last Updated

10 Jan 2019

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Time Traveler for ninety

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

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More Definitions for ninety



English Language Learners Definition of ninety

: the number 90

nine*ties : the numbers ranging from 90 to 99

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


nine·​ty | \ ˈnīn-tē \

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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