seventy

1 of 2

noun (1)

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

Seventy : a Latter-day Saint 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

seventieth

2 of 2

noun (2)

"

plural -s

1

: number 70 in a countable series

2

: the quotient of a unit divided by 70 : one of 70 equal parts of something

one seventieth of the total

Examples of seventy in a Sentence

Noun (1)

She is in her seventies.

Recent Examples on the Web

Noun

Across California, seniors in their seventies are still on the job. —Dwight Earl Williams, Oc Register, 4 June 2026

Even the pioneers of the city’s experimental-dance scene in the sixties and seventies, so open-minded and self-aware in some respects, mostly forgot to think about race. —Marina Harss, New Yorker, 3 June 2026

In the late seventies, the NASL was a traveling circus. —Literary Hub, 18 May 2026

Lillian RandolphWendy Holman Wendy Holman is in her late seventies now. —Sarah Dahlberg, NBC news, 10 May 2026

Word History

Etymology

Noun (1)

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

Noun (1)

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