homophone

thumb|400px|Venn diagram showing the relationships between homophones (blue circle) and related linguistic concepts

A homophone () is a word that is pronounced the same as another word but differs in meaning or in spelling. The two words may be spelled the same, for example rose (flower) and rose (past tense of "rise"), or spelled differently, as in rain, reign, and rein. The term homophone sometimes applies to units longer or shorter than words, for example a phrase, letter, or groups of letters which are pronounced the same as a counterpart. Any unit with this property is said to be homophonous ().