scent vs groom

scent and groom both are nouns.

Word	Noun	Adjective	Verb	Adverb
scent	Yes	No	Yes	No
groom	Yes	No	Yes	No

As verbs, groom is a hypernym of scent; that is, groom is a word with a broader meaning than scent:

Other hypernyms of scent include neaten.

scent (noun)	groom (noun)
any property detected by the olfactory system	a man who has recently been married
an odor left in passing by which a person or animal can be traced	someone employed in a stable to take care of the horses
a distinctive odor that is pleasant	a man participant in his own marriage ceremony

scent (verb)	groom (verb)
apply perfume to	care for one's external appearance
catch the scent of; get wind of	give a neat appearance to
cause to smell or be smelly	educate for a future role or function