What is a mute person?

Question

i really wanted to know if a mute person was deaf or just couldn't speak

or both

Answer 1

there is a mute girl in my class and she does not speak she uses i blnk for yes and no blinks for no

Answer 2

there is a mute girl in my class and she does not speak

Answer 3

a person that can't speak. many people think it is a deaf person, but it is not