FIFTY

[determiner], [pronoun], [noun] - (the number) 50forty, fifty, sixtyfifty poundsthe fifty states of the Union (= the United States of America)How fast were they driving? They were doing fifty (miles an hour).There are two fifties in a hundred.Fifty-fifty means (into) equal halves.They divided the cake fifty-fifty.Let's go fifty-fifty (= We'll share esp. the cost equally).We could share the work on a fifty-fifty basis.There's only a fifty-fifty chance that she'll survive the operation.