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.
And while eighties ski suits are back on the slopes, the mullet largely isn’t, except on a sign banning it on Lake Tahoe’s Mount Rose. Jesse Klein, Outside, 27 Dec. 2025 Farm debt is back near its peak in the eighties—higher, by some measures—and rural suicide rates have climbed sharply. Alex Abramovich, New Yorker, 22 Dec. 2025 That would be boxer Vinny Paz or Vinny Pazienza, a tough fighter out of Rhode Island who in the eighties and nineties fought his way to the top of the fight game, earning two championship titles. Peter Lucas, Boston Herald, 22 Dec. 2025 The production also happened to star her mother, Kaća Dorić, an actress with a long career and now in her eighties. Literary Hub, 15 Dec. 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 Jan. 2026.

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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