A homophone is a word that sounds the same as another word but has a different meaning and spelling.
However, you could argue that "manner" is a near homophone, as it has a similar pronunciation but a different meaning.
* Manor: A large house, especially one with land attached to it.
* Manner: A way of behaving or acting.
It's important to remember that "manner" has a slightly different pronunciation, but it's very close to "manor" in spoken English.