hair vs hairy

hair is a noun but hairy is not a noun.

Word	Noun	Adjective	Verb	Adverb
hair	Yes	No	No	No
hairy	No	Yes	No	No

hair (noun)	hairy (noun)
a filamentous projection or process on an organism
cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments
a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss
any of the cylindrical filaments characteristically growing from the epidermis of a mammal
filamentous hairlike growth on a plant
a very small distance or space

hair (adjective)	hairy (adjective)
	having or covered with hair
	hazardous and frightening