fifty

American  

[fif-tee] / ˈfɪf ti /

noun

• fifties
  plural

1. a cardinal number, ten times five.

2. a symbol for this number, as 50 or L.

3. a set of this many persons or things.

4. fifties, the numbers, years, degrees, or the like, from 50 through 59, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature.

   She lives in the East Fifties. He's in his late fifties. It's going to be in the fifties again today.

5. Informal. a fifty-dollar bill.

   He had a fifty and two tens in his wallet.

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adjective

1. amounting to 50 in number.

fifty British  

/ ˈfɪftɪ /

noun

1. the cardinal number that is the product of ten and five

2. a numeral, 50, L, etc, representing this number

3. something represented by, representing, or consisting of 50 units

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determiner

1. 1. amounting to fifty

      fifty people

   2. ( as pronoun )

      fifty should be sufficient

Other Word Forms

Noun Inflected Forms

• fifties
  plural

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Etymology

Origin of fifty

before 900; Middle English; Old English fīftig. See five, -ty ¹

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Example Sentences

See Examples For:

fifty fifties

Fifteen-year-old Sooryavanshi's 45 from 19 balls was merely a supporting act to Abhishek, who raced to his fifty from 15 deliveries as New Zealand's bowlers wilted.

From BBC ● Oct. 27, 2026

To investigate this connection, the team studied a large multicenter group consisting of fifty patients and one hundred brain hemispheres.

From Science Daily ● Aug. 12, 2026

Around fifty miners have already taken part, and all of them have received job offers.

From Barron's ● Jul. 17, 2026

He blunders on Warren Buffett, stating that his company, Berkshire Hathaway, hasn’t made a garment “in over fifty years,” but the company only closed its textile operations 41 years ago.

From The Wall Street Journal ● Jul. 1, 2026

It was fifty years since he had called me that.

From "The Hiding Place" by Corrie ten Boom

While he has failed to convert any of his seven fifties into centuries since the Ashes, he still averages 41.57 and has scored hundreds as captain in T20s and one-day internationals in that time.

From BBC ● Oct. 19, 2026

The man was in his fifties when he was diagnosed with mild cognitive impairment caused by Alzheimer's disease.

From Science Daily ● Oct. 15, 2026

In a breakout international summer, Cox impressed by scoring fifties in all three Tests when picked to bat number three against Pakistan.

From BBC ● Sep. 28, 2026

Khaled Al-Badri, a Kuwaiti man in his fifties, told AFP he started turning off the air conditioning before leaving his house and switching off the outdoor lights.

From Barron's ● Jul. 21, 2026

The man, who looked to be in his early fifties, took the paper and put on his glasses before studying the paper carefully.

From "Proud" by Ibtihaj Muhammad

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