coiffure vs groom

coiffure and groom both are nouns.

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

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

Other hypernyms of coiffure include neaten.

coiffure (noun)	groom (noun)
the arrangement of the hair (especially a woman's hair)	a man who has recently been married
	someone employed in a stable to take care of the horses
	a man participant in his own marriage ceremony

coiffure (verb)	groom (verb)
arrange attractively	care for one's external appearance
	give a neat appearance to
	educate for a future role or function