six·​ty | \ ˈsiks-tē How to pronounce sixty (audio) \
plural sixties

Definition of sixty

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

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Other Words from sixty

sixtieth \ ˈsiks-​tē-​əth How to pronounce sixty (audio) \ adjective or noun
sixty adjective
sixty pronoun, plural in construction
sixtyish \ ˈsiks-​tē-​ish How to pronounce sixty (audio) \ adjective

Examples of sixty in a Sentence

He retired when he was in his sixties.
Recent Examples on the Web Rana was born into a New York restaurant family that has run Italian joints since the sixties, both on the East Coast and, more recently, in Phoenix. Dominic Armato, azcentral, 27 May 2020 The National Weather Service forecast calls for highs in the upper sixties with winds of 9-14 mph. Mike Rose, cleveland, 20 May 2020 Hamilton’s Holiday Auto Theatre and the Starlite Drive-In of Amelia have been around for sixty and seventy-three years, respectively. Paul Daugherty,, 14 May 2020 Building machines that can process and recognize images as accurately as a human has been, along with teaching machines to read, speak, and write our language, a holy grail of artificial-intelligence research since the early sixties. John Seabrook, The New Yorker, 9 Mar. 2020 Six Months Before the Manson Murders In the late sixties, Sharon Tate and Roman Polanski, young, newlywed, and in love, took up residence in the Chateau Marmont. Leena Kim, Town & Country, 24 May 2019 Miner is also checking up on her parents, who are in their late sixties and her grandparents., 25 Mar. 2020 In the sixties, hard-partying New York rock climbers known as the Vulgarians got laughs by ascending big cliffs while stark naked. Daniel Duane, Outside Online, 12 Apr. 2020 Highs will top out in the low sixties with cloudy skies throughout the day and overnight lows in the low 50s. Mike Rose, cleveland, 6 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sixty.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sixty

14th century, in the meaning defined at sense 1

History and Etymology for sixty

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

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Time Traveler for sixty

Time Traveler

The first known use of sixty was in the 14th century

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Dictionary Entries Near sixty




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Statistics for sixty

Cite this Entry

“Sixty.” Dictionary, Merriam-Webster, Accessed 20 Sep. 2021.

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More Definitions for sixty



English Language Learners Definition of sixty

: the number 60
: the numbers ranging from 60 to 69
: a set of years ending in digits ranging from 60 to 69


six·​ty | \ ˈsik-stē How to pronounce sixty (audio) \

Kids Definition of sixty

 (Entry 1 of 2)

: being six times ten



Kids Definition of sixty (Entry 2 of 2)

: six times ten : 60

More from Merriam-Webster on sixty

Nglish: Translation of sixty for Spanish Speakers

Britannica English: Translation of sixty for Arabic Speakers


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