seventy

[ sev-uhn-tee ]

/ ˈsɛv ən ti /

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noun, plural sev·en·ties.

a cardinal number, 10 times 7.

a symbol for this number, as 70 or LXX.

a set of this many persons or things.

seventies, the numbers, years, degrees, or the like from 70 through 79, as in referring to numbered streets, indicating the years of a lifetime or of a century, or referring to degrees of temperature: They live in the Seventies. His uncle is in his early seventies. It was in the seventies yesterday.

the Seventy, the body of scholars who produced the Septuagint.

adjective

amounting to 70 in number.

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Origin of seventy

1150–1200; Middle English; Old English seofontig.See seven, -ty¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use seventy in a sentence

Francis is well into his seventies, looks it, has a mild demeanor and soft speaking style; but his rhetoric is electrifying.
How Pope Francis Became the World’s BFF|Jason Berry|December 21, 2014|DAILY BEAST
The Rizzoli in New York City was no ordinary bookstore in its seventies heyday.
The Bookstore That Bewitched Mick Jagger, John Lennon, and Greta Garbo|Felice Picano|December 16, 2014|DAILY BEAST
Until the seventies, women here were free to wear almost whatever they wanted.
Saudi Activist Manal Al-Sharif on Why She Removed the Veil|Manal Al Sharif, Advancing Human Rights|October 30, 2014|DAILY BEAST
Even at its bushiest, in the Oscar-winning seventies-set Argo, the Affleck beard remained hot and dignified.
Leo, the Beard Has to Go: When a Man’s Facial Hair Reaches Crisis Point|Tim Teeman|September 22, 2014|DAILY BEAST

That generation was killed by the dictatorship here in the seventies.
Argentina’s Drag & Drop Democracy|Jeff Campagna|March 12, 2014|DAILY BEAST
About the close of the seventies Tchaikovsky started a new diary, which he kept for about ten years.
The Life & Letters of Peter Ilich Tchaikovsky|Modeste Tchaikovsky
It was one of those white stone places up in the east seventies.
Hooded Detective, Volume III No. 2, January, 1942|Various
He was able to invade the latter country in force, and to besiege the city of Urmi for some weeks in the early seventies.
The Cradle of Mankind|W.A. Wigram
A novel of the army on the frontier during the time of the Indian outbreaks under Geronimo and others in the late seventies.
Robert Annys: Poor Priest|Annie Nathan Meyer
For a week the pup had a miserable time in winds ranging mostly about the seventies, with the temperature below zero Fahrenheit.
The Home of the Blizzard|Douglas Mawson

British Dictionary definitions for seventy

seventy

/ (ˈsɛvəntɪ) /

noun plural -ties

the cardinal number that is the product of ten and sevenSee also number (def. 1)

a numeral, 70, LXX, etc, representing this number

(plural) the numbers 70–79, esp the 70th to the 79th year of a person's life or of a particular century

the amount or quantity that is seven times as big as ten

something represented by, representing, or consisting of 70 units

determiner

amounting to seventythe seventy varieties of fabric
(as pronoun)to invite seventy to the wedding

Word Origin for seventy

Old English seofentig

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012