noun

1. a word with the same pronunciation as another but with a different meaning, origin, and, usually, spelling (Ex.: bore and boar); homophone
2. loosely a homograph
3. either of two people with the same name; namesake
4. Biol. a name for a genus, species, etc. unsuitable because already used for another taxonomic classification

Etymology: Fr homonyme < L homonymus < Gr homōnymos, having the same name < homos, same + onyma, name