sixty

American  

[siks-tee] / ˈsɪks ti /

noun

• sixties
  plural

1. a cardinal number, ten times six.

2. a symbol for this number, as 60 or LX.

3. a set of this many persons or things.

4. sixties, the numbers, years, degrees, or the like, from 60 through 69, as in referring to numbered streets, indicating the years of a lifetime or of a century, or noting degrees of temperature.

   Her grandfather is in his late sixties. The temperature is in the low sixties.

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adjective

1. amounting to 60 in number.

idioms

1. like sixty, with great speed, ease, energy, or zest.

   Everyone was working like sixty to finish up before the holidays.

sixty British  

/ ˈsɪkstɪ /

noun

1. the cardinal number that is the product of ten and six See also number

2. a numeral, 60, LX, etc, representing sixty

3. something represented by, representing, or consisting of 60 units

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determiner

1. 1. amounting to sixty

      sixty soldiers

   2. ( as pronoun )

      sixty are dead

Other Word Forms

Noun Inflected Forms

• sixties
  plural

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Etymology

Origin of sixty

before 900; Middle English (adj. and noun), Old English sixtig (adj.); cognate with Dutch zestig, German sechzig, Old Norse sextigir. See six, -ty ¹

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Example Sentences

See Examples For:

sixty sixties

For nearly sixty years, the tenets of the treaty have been respected by all nations.

From Salon ● Apr. 9, 2026

Dr. Ilko's conclusions are based on ten years of research that took her to more than twenty archives and over sixty Augustinian sites, including remote and difficult to access ruins.

From Science Daily ● Feb. 2, 2026

"For over sixty years, Bobby took to the road," the statement said.

From Barron's ● Jan. 11, 2026

Two miles in, with sixty to go, my left foot crashed into a thick root and I tumbled forward.

From The Wall Street Journal ● Oct. 30, 2025

I’ve heard this lecture about sixty thousand times.

From "A Place at the Table" by Saadia Faruqi and Laura Shovan

"We'll be facing gridlock and bottlenecks all over again," the business owner, in his sixties, told AFP.

From Barron's ● Aug. 12, 2026

John: “We’ve had the swinging sixties, and I was wondering, Mrs. Lennon, how you saw your place in the seventies?”

From Salon ● Dec. 23, 2025

There were plenty of British title winners in the sixties in what was a very British sport, but the softly spoken Surtees stood out as an international talent.

From BBC ● Dec. 8, 2025

Dear Liz: My husband’s parents, who are 88 and 93, respectively, have decided to leave their house, worth $800,000, equally, to their three children, who are all in their sixties.

From Los Angeles Times ● Jun. 8, 2025

But by 1975 the sixties had finally ended for my brother.

From "Middlesex: A Novel" by Jeffrey Eugenides

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