mental hospital vs mental home

mental hospital and mental home both are nouns.

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

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

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

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

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