seventy

noun

sev·​en·​ty ˈse-vən-tē 

ˈse-bᵊm-,

-dē

plural seventies

1

: a number equal to seven times 10 see Table of Numbers

2

seventies plural : the numbers 70 to 79

specifically : the years 70 to 79 in a lifetime or century

3

capitalized : a Mormon elder ordained for missionary work under the apostles

seventieth

ˈse-vən-tē-əth 

ˈse-bᵊm-

-dē-

adjective or noun

seventy adjective

seventy pronoun, plural in construction

Examples of seventy in a Sentence

She is in her seventies.

Recent Examples on the Web

Robert Lowell, the poet, was a resident in the seventies. —Sam Knight, New Yorker, 17 June 2025

A week ahead of the band’s induction into the songwriters hall of fame, Johnston, McDonald, Simmons and John McFee, all now in their seventies, sat down with The Hollywood Reporter recalling their legendary career, their biggest songs and their longevity. —Steve Bloom, HollywoodReporter, 12 June 2025

Patty Hirota-Cohen, in her seventies, has been preoccupied with osteopenia for at least 15 years. —Jia H. Jung, Mercury News, 4 June 2025

Hootie [& the Blowfish], Dave [Matthews Band], and seventies soul and funk.... —Betsy Cribb Watson, Southern Living, 15 May 2025

Word History

Etymology

seventy, adjective, from Middle English, from Old English seofontig, short for hundseofontig, from hundseofontig, noun, group of seventy, from hund hundred + seofon seven + -tig group of ten; akin to Old English tīen ten

First Known Use

12th century, in the meaning defined at sense 1

Phrases Containing seventy

• seventy-eight

Kids Definition

seventy

noun

sev·​en·​ty ˈsev-ən-tē 

plural seventies

: a number equal to seven times 10 see number

seventieth

-tē-əth 

adjective or noun

seventy adjective or pronoun