A Quick and Simple Dictionary

half

1. Adjective.  Consisting of a moiety, or half (1/2, 50%).
2. Adjective.  Consisting of some indefinite portion resembling a half; approximately a half, whether more or less; partial; imperfect.
3. Adjective.  (context, of a sibling) Having one parent (rather than two) in common.
4. Adjective.  (context, rare, of a relative other than a sibling) Related through one common grandparent or ancestor rather than two.
5. Adverb.  In two equal parts or to an equal degree; in some part approximating a half; partially; imperfectly.
6. Noun.  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.
7. Noun.  Half of a standard measure; frequently used (British) for half a pint of beer or cider.
8. Noun.  (context, preceded by “a” or a number) The fraction obtained by dividing 1 by 2.
9. Noun.  (obsolete) part; side; behalf.
10. Verb.  (transitive, obsolete) To halve.