mousse vs groom

mousse and groom both are nouns.

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

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

Other hypernyms of mousse include neaten.

mousse (noun)	groom (noun)
toiletry consisting of an aerosol foam used in hair styling	a man who has recently been married
a light creamy dish made from fish or meat and set with gelatin	someone employed in a stable to take care of the horses
a rich, frothy, creamy dessert made with whipped egg whites and heavy cream	a man participant in his own marriage ceremony

mousse (verb)	groom (verb)
apply a styling gel to	care for one's external appearance
	give a neat appearance to
	educate for a future role or function