a cardinal number, 50 plus 1.
a symbol for this number, as 51 or LI.
a set of this many persons or things.
amounting to 51 in number.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use fifty-one in a sentence
From late 1921 and for the next eight years, a “new building went up in New York City every fifty-one minutes, on average.”
Even now, at fifty-one, Herschel Walker is one of the most impressive athletes in the world.
The country is well inhabited, for it contains fifty-one cities, near a hundred walled towns, and a great number of villages.Gulliver's Travels | Jonathan Swift
This was in 1616, when the colony numbered only three hundred and fifty-one persons.Tobacco; Its History, Varieties, Culture, Manufacture and Commerce | E. R. Billings.
Eighteen hundred and fifty-one was a period of anxiety to the Midland and to railway companies generally.Fifty Years of Railway Life in England, Scotland and Ireland | Joseph Tatlow
Great alterations were said to have been made in schedule A: fifty-one boroughs out of fifty-six remained as before.The History of England in Three Volumes, Vol.III. | E. Farr and E. H. Nolan
These resolutions, however, were rejected by a majority of fifty-one against eighteen.The History of England in Three Volumes, Vol.III. | E. Farr and E. H. Nolan