sixty

noun

six·​ty ˈsiks-tē 

plural sixties

1

: a number that is equal to six times 10 see Table of Numbers

2

sixties plural : the numbers 60 to 69

specifically : the years 60 to 69 in a lifetime or century

sixtieth

ˈsiks-tē-əth 

adjective or noun

sixty adjective

sixty pronoun, plural in construction

sixtyish

ˈsiks-tē-ish 

adjective

Examples of sixty in a Sentence

He retired when he was in his sixties.

Recent Examples on the Web

The price held in the sixties for six weeks, the report said. — Garrett Downs, CNBC, 9 Sep. 2026

Unlike its competitors, Hermès is a pre-haute-couture enterprise, founded before the rigid bureaucracy of French fashion was put into place, in the eighteen-sixties, with the establishment of a governing syndicate. — Lauren Collins, New Yorker, 7 Sep. 2026

Goldman found Koreans in their sixties save more than any other age group, retaining 37% of their income. — Mia Osmonbekov, Fortune, 30 Aug. 2026

Nearby, Americans in their sixties and seventies drunkenly solicit girls who barely look of age. — Mattha Busby, Rolling Stone, 19 Aug. 2026

Word History

Etymology

Middle English, from sixty, adjective, from Old English siextig, noun, group of sixty, from siex six + -tig group of ten; akin to Old English tīen ten

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing sixty

• sixty-fourth note
• sixty-fourth rest
• sixty-nine

Kids Definition

sixty

noun

six·​ty ˈsik-stē 

plural sixties

: a number that is equal to six times 10 see number

sixtieth

-stē-əth 

adjective or noun

sixty adjective or pronoun