a Consisting of some indefinite portion resembling a half; approximately a half, whether more or less; partial; imperfect.
a (context|rare, of a relative other than a sibling) Related through one common grandparent or ancestor rather than two.
a In two equal parts or to an equal degree; in some part approximating a half; partially; imperfectly
n one | One of two equal parts into which anything may be divided, or considered as divided; — sometimes followed by of; as, a 'half' of an apple.