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.
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 Once, a paleta vendor in his eighties ran from the group when he was approached, a lesson in dealing with the very real emotional and mental tolls at play. Jessi Roti, Bon Appetit Magazine, 9 Dec. 2025 Not even when a bony lady in her eighties stepped onto the floor in a gown sequined with lizards that ran up her arms and neck to her henna-red wig. Betty Fussell, PEOPLE, 1 Dec. 2025 Others borrowed from the anxieties of the eighties, from AIDS to Eastern Bloc repression. Simon Akam, New Yorker, 1 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 18 Dec. 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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