Fifty

• POS: Definite Article, Noun
• HYPHEN: fif=ty

CIDE DICTIONARY

Fifty, a. [AS. fīftig; akin to OHG. finfzug, fimfzuc, G. fÜnfzig, funfzig, Goth. fimftigjus. See Five, and Ten, and cf. Fifteen.].

 Five times ten; as, fifty men.  [1913 Webster]

Fifty, n. 

•  The sum of five tens; fifty units or objects.  [1913 Webster]
•  A symbol representing fifty units, as 50, or l.  [1913 Webster]

OXFORD DICTIONARY

Fifty, n. & adj.
--n. (pl. -ies)
1 the product of five and ten.
2 a symbol for this (50, l, L).
3 (in pl.) the numbers from 50 to 59, esp. the years of a century or of a person's life.
4 a set of fifty persons or things.
5 a large indefinite number (have fifty things to tell you).
--adj. that amount to fifty.

Idiom

fifty-fifty adj. equal, with equal shares or chances (on a fifty-fifty basis).
--adv. equally, half and half (go fifty-fifty). fifty-first, -second , etc. the ordinal numbers between fiftieth and sixtieth. fifty-one, -two , etc. the cardinal numbers between fifty and sixty.

Derivative

fiftieth adj. & n. fiftyfold adj. & adv.

Etymology

OE fiftig (as FIVE, -TY(2))

ROGET THESAURUS

Fifty

Five

N five, five, cinque, quint, quincux, six, half-a- dozen, half dozen, seven, eight, nine, three times three, dicker, ten, decade, eleven, twelve, dozen, thirteen, long dozen, baker's dozen, quintuplet, twenty, score, twenty-four, four and twenty, two dozen, twenty-five, five and twenty, quarter of a hundred, forty, two score, fifty, half a hundred, sixty, three score, seventy, three score and ten, eighty, four score, ninety, fourscore and ten, sestiad, hundred, centenary, hecatomb, century, hundredweight, cwt, one hundred and forty-four, gross, thousand, chiliad, millennium, thousand years, grand, myriad, ten thousand, ban, man, ten thousand years, banzai, lac, one hundred thousand, plum, million, thousand million, milliard, billion, trillion, five, quinary, quintuple, fifth, senary, sextuple, sixth, seventh, septuple, octuple, eighth, ninefold, ninth, tenfold, decimal, denary, decuple, tenth, eleventh, duodenary, duodenal, twelfth, in one's 'teens, thirteenth, vicesimal, vigesimal, twentieth, twenty-fourth, vicenary, vicennial, centuple, centuplicate, centennial, centenary, centurial, secular, hundredth, thousandth.