homophone (plural homophones)
- A word which is pronounced the same as another word but differs in spelling or meaning or origin, for example: carat, caret, carrot, and karat.
- A letter or group of letters which are pronounced the same as another letter or group of letters.
Related terms 
- homophonous (adjective)
Usage notes 
A homophone is a type of homonym in the loose sense of that term (a word which sounds or is spelled the same as another). (The strict sense of homonym is a word that both sounds and is spelled the same as another word.) A homograph is a word with the same spelling as another but a completely unrelated meaning. Homographs are not necessarily homophones.
- ^ http://www.merriam-webster.com/dictionary/homophone
- ^ http://www.askoxford.com/concise_oed/homophone?view=uk
See also 
homophone (masculine and feminine, plural homophones)
homophone m (plural homophones)