kisser vs lover

kisser and lover both are nouns.

Word	Noun	Adjective	Verb	Adverb
kisser	Yes	No	No	No
lover	Yes	No	No	No

As nouns, lover is a hypernym of kisser; that is, lover is a word with a broader meaning than kisser:

kisser (noun)	lover (noun)
the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)	a person who loves someone or is loved by someone
someone who kisses	an ardent follower and admirer
	a significant other to whom you are not related by marriage