smut vs rump

smut and rump both are nouns.

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

smut (noun)	rump (noun)
creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire	the part of an animal that corresponds to the human buttocks
an offensive or indecent word or phrase	the fleshy part of the human body that you sit on
any fungus of the order Ustilaginales	fleshy hindquarters; behind the loin and above the round
destructive diseases of plants (especially cereal grasses) caused by fungi that produce black powdery masses of spores
a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink

smut (verb)	rump (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