seventy
Americannoun
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seventies
plural
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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
Other Word Forms
Noun Inflected Forms
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.
See Examples For:
Among the ideas he flagged: solve a continuing housing crisis in the U.K. by getting the state to launch the biggest social housing building program in seventy years.
From The Wall Street Journal ● Jul. 17, 2026
"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
Seven hundred seventy thousand jobs may be lost by 2030, with an additional increase to roughly 900,000 in 2032..
From Salon ● Jun. 30, 2025
Thinking through the challenges of managing CCS liability, Mormann was reminded of another sustainable energy technology -- nuclear power -- that struggled to enter the mainstream some seventy years ago.
From Science Daily ● May 14, 2024
The new linguistic skills that modern Sapiens acquired about seventy millennia ago enabled them to gossip for hours on end.
From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari
"I'm happy -- I couldn't wait to come home and have my coffee and breakfast," said Maria Jesus Perez Blanca, in her seventies.
From Barron's ● Jul. 29, 2026
Sure, but consider why today isn’t like the seventies.
From The Wall Street Journal ● Feb. 3, 2026
The album was “Transference,” its cover a grainy seventies tableau — a boy slinking low in a golden wingback chair, viridian curtains pooling behind him, a table lamp casting an almost aggressively orange glow.
From Salon ● Dec. 30, 2025
Conditions were perfect — blue skies, temperatures approaching the seventies, the brown grass under our feet feeling firm and fast.
From Los Angeles Times ● Sep. 7, 2025
Temperatures promised to climb into the low seventies by race time.
From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown
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.
