eighty

noun

plural eighties
1
: a number that is equal to eight times 10 see Table of Numbers
2
eighties plural : the numbers 80 to 89
specifically : the years 80 to 89 in a lifetime or century
eightieth adjective or noun
eighty adjective
eighty pronoun, plural in construction

Examples of eighty in a Sentence

The temperature rose to the high eighties. She is in her mid-eighties.
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.
Morrison was one of a generation of activists who took over the Sinn Féin leadership in the early nineteen-eighties, as was Gerry Adams, who became president of the Party in 1983. The New Yorker, New Yorker, 29 Oct. 2025 For the past two years, toddlers at Bernard Jackson’s swim and wellness center in Washington, DC, have learned to float for the first time, and seniors in their eighties have practiced gentle exercises to stay strong. Bryan Mena, CNN Money, 24 Oct. 2025 Ellis spent time at PS1 at the turn of the eighties and worked as a guard at MoMA, as Angus did in those same years. Alessia Glaviano, Vogue, 20 Oct. 2025 The boxy Rover parked outside Lowestoft station is particularly evocative for a British child of the eighties and nineties. Literary Hub, 16 Oct. 2025 See All Example Sentences for eighty

Word History

Etymology

Middle English eighty, adjective, from Old English eahtatig, short for hundeahtatig, noun, group of eighty, from hund-, literally, hundred + eahta eight + -tig group of ten; akin to Old English tīen ten

First Known Use

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

Time Traveler
The first known use of eighty was before the 12th century

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Cite this Entry

“Eighty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eighty. Accessed 31 Oct. 2025.

Kids Definition

eighty

noun
plural eighties
: a number that is equal to eight times 10 see number
eightieth adjective or noun
eighty adjective or pronoun

More from Merriam-Webster on eighty

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