Deafness is commonly understood to include both total and partial hearing loss. Every major dictionary defines it this way. It might have a more precise meaning in some spheres (medical, etc), but in common English it is not binary the way you’re suggesting.
Similar to blindness which also isn’t an absolute yes or no. People can be blind and still see colors and shapes, but not enough to be able to tell what they are.
Deafness is commonly understood to include both total and partial hearing loss. Every major dictionary defines it this way. It might have a more precise meaning in some spheres (medical, etc), but in common English it is not binary the way you’re suggesting.
Merriam Webster: deaf
Dictionary.com: deaf
Cambridge English dictionary: deaf
Similar to blindness which also isn’t an absolute yes or no. People can be blind and still see colors and shapes, but not enough to be able to tell what they are.