fifty

noun, plural fif·ties.

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.

adjective

6. amounting to 50 in number.

noun plural -ties

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

determiner

4. 1. amounting to fiftyfifty people
   2. (as pronoun)fifty should be sufficient