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

Only about 40% of workers in their early sixties are on track to sustain their standard of living in retirement; the typical near‑retiree faces about a 24% income gap, roughly $9,000 a year. —Nick Lichtenberg, Fortune, 7 June 2026

Karpman was particularly influenced by Thompson’s performance, especially since the idea of a series with a heroine in her sixties was another factor that drew her to the series. —Jim Hemphill, IndieWire, 5 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

Its ensemble includes a Brazilian-origin sensei, a young Basque-Maghrebi fighter, an African migrant in his sixties, a policewoman and a landlord antagonist. —Callum McLennan, Variety, 1 June 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