barber vs groom

barber and groom both are nouns.

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

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

Other hypernyms of barber include neaten.

barber (noun)	groom (noun)
a hairdresser who cuts hair and shaves beards as a trade	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

barber (verb)	groom (verb)
perform the services of a barber: cut the hair and/or beard of	care for one's external appearance
	give a neat appearance to
	educate for a future role or function