smut vs ass

smut and ass both are nouns.

Word	Noun	Adjective	Verb	Adverb
smut	Yes	No	Yes	No
ass	Yes	No	No	No

smut (noun)	ass (noun)
creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire	slang for sexual intercourse
an offensive or indecent word or phrase	hardy and sure-footed animal smaller and with longer ears than the horse
any fungus of the order Ustilaginales	the fleshy part of the human body that you sit on
destructive diseases of plants (especially cereal grasses) caused by fungi that produce black powdery masses of spores	a pompous fool
a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink

smut (verb)	ass (verb)
affect with smut or mildew, as of a crop such as corn
stain with a dirty substance, such as soot
become affected with smut
make obscene