lave vs shampoo

lave is not a noun while shampoo is a noun.

Word	Noun	Adjective	Verb	Adverb
lave	No	No	Yes	No
shampoo	Yes	No	Yes	No

As verbs, shampoo is a hyponym of lave; that is, shampoo is a word with a more specific, narrower meaning than lave:

Other hyponyms of lave include sponge down, scrub, scrub up, gargle, rinse, hush, wash.

lave (noun)	shampoo (noun)
	the act of washing your hair with shampoo
	cleansing agent consisting of soaps or detergents used for washing the hair

lave (verb)	shampoo (verb)
cleanse (one's body) with soap and water	use shampoo on (hair)
wash one's face and hands
wash or flow against