crispy vs crisp

crispy is not a noun while crisp is a noun.

Word	Noun	Adjective	Verb	Adverb
crispy	No	Yes	No	No
crisp	Yes	Yes	Yes	No

As adjectives, crispy and crisp are synonyms defined as:

crispy (noun)	crisp (noun)
	a thin crisp slice of potato fried in deep fat

crispy (adjective)	crisp (adjective)
tender and brittle	pleasantly cold and invigorating
	brief and to the point; effectively cut short
	(of hair) in small tight curls
	(of something seen or heard) clearly defined
	pleasingly firm and fresh
	tender and brittle

crispy (verb)	crisp (verb)
	make brown and crisp by heating
	make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic