seventy
Americannoun
plural
seventies-
a cardinal number, 10 times 7.
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a symbol for this number, as 70 or LXX.
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a set of this many persons or things.
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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.
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the Seventy, the body of scholars who produced the Septuagint.
adjective
noun
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the cardinal number that is the product of ten and seven See also number
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a numeral, 70, LXX, etc, representing this number
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(plural) the numbers 70–79, esp the 70th to the 79th year of a person's life or of a particular century
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the amount or quantity that is seven times as big as ten
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something represented by, representing, or consisting of 70 units
determiner
Etymology
Origin of seventy
1150–1200; Middle English; Old English seofontig. See seven, -ty 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"It was a wonderful moment," even if seventy percent of the people there were strangers, Michael told Israel's Channel 13.
From Barron's • Mar. 8, 2026
This is still well short of the previous longest wet spell in Cardinham of seventy two days recorded in 2000.
From BBC • Feb. 18, 2026
Among the seventy invitees were Farah Diba Pahlavi, widow of Iran’s last shah, former French culture minister Frédéric Mitterrand, and a scattering of aristocrats and artists.
From The Wall Street Journal • Oct. 18, 2025
There are seventy or so days until Election Day and much hard work is to be done.
From Salon • Aug. 22, 2024
"Fifteen! For the prop of my old age and the delight of my eyes! Do not mock my grey beard, Tarkaan though you be. My price is seventy."
From "The Horse and His Boy" by C.S. Lewis
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.