mental home vs mental hospital

mental home and mental hospital both are nouns.

Word	Noun	Adjective	Verb	Adverb
mental home	Yes	No	No	No
mental hospital	Yes	No	No	No

As nouns, mental home and mental hospital are synonyms defined as:

mental home and mental hospital: a hospital for mentally incompetent or unbalanced person

Other synonyms of mental home include asylum, insane asylum, institution, mental institution, psychiatric hospital.

mental home (noun)	mental hospital (noun)
a hospital for mentally incompetent or unbalanced person	a hospital for mentally incompetent or unbalanced person