one-half - one of two equal parts of a divisible whole; "half a loaf"; "half an hour"; "a century and one half"halfcommon fraction, simple fraction - the quotient of two integersfifty percent - a half expressed as a percentagemediety, moiety - one of two (approximately) equal parts
one-half - one of two equal parts of a divisible whole; "half a loaf"; "half an hour"; "a century and one half"