homophone

n. word identical in pronunciation to another word but different in meaning and spelling (for example: "aloud" and "allowed", "sight" and "site")

A homophone is a word that is pronounced the same as another word but differs in meaning. The words may be spelled the same, such as rose (flower) and rose (past tense of "rise"), or differently, such as carat, caret, and carrot, or your and you're. A short example of a homophone are the words "know" and "no". Notice that they are pronounced the same, but both have different meanings. A homophone is a specific type of homonym. The term may also be used to apply to units shorter than words, such as letters or group of letters which are pronounced the same as another letter or group of letters.
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Noun
1. two words are homophones if they are pronounced the same way but differ in meaning or spelling or both (e.g. bare and bear)
(hypernym) homonym

adj. (new spell.=homofon) homophonic, (about a word)

n. homophone, word identical in pronunciation to another but different in meaning