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

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

Examples of seventy in a Sentence

She is in her seventies.

Recent Examples on the Web

In the first half of the nineteen-seventies, Philadelphia International Records created a sound that came to be known as Philly soul. — Rhoda Feng, New Yorker, 24 July 2026

The untrained artist began drawing only in her seventies, but her still lifes, often made after dark with humble materials like everyday markers and ballpoint pen, bristle with energy. — Brian Boucher, ARTnews.com, 22 July 2026

On board are a couple in their seventies, doctors from Berkeley, California, who hope to see puffer fish and triggerfish. — Ariel Leve, Travel + Leisure, 7 July 2026

By 1 pm, temperatures were in the mid-seventies, according to a post by the organization Climate Reality. — Marshall Shepherd, Forbes.com, 4 July 2026

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