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.
As many as three-quarters of all teen-agers now wear braces at some point—up from thirty per cent in the eighties and five per cent in the fifties. Burkhard Bilger, New Yorker, 28 July 2025 Jim and Stephen in the eighties did not quite take this sort-of observer’s viewpoint from within. Quanta Magazine, 24 July 2025 But now that so many of his peers continue to turn out new material into their eighties, Joel’s choice is even more striking. David Browne, Rolling Stone, 18 July 2025 Yes, by the late eighties the transition Art had envisioned was happening. Literary Hub, 16 July 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 2 Aug. 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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