a word that is written the same way as another word but has a different meaning; homonym

The quality of words having the same pronunciation but different meanings; homophony

word with the same pronunciation but a different meaning or different characters

A character that has the same written form but different pronunciations and different meanings, such as [[漂|漂|piao4]] meaning "pretty" and [[漂|漂|piao1]] meaning "to float"