streaky vs streak

streaky is not a noun while streak is a noun.

Word	Noun	Adjective	Verb	Adverb
streaky	No	Yes	No	No
streak	Yes	No	Yes	No

streaky (noun)	streak (noun)
	a narrow marking of a different color or texture from the background
	a distinctive characteristic
	a sudden flash (as of lightning)
	an unbroken series of events

streaky (adjective)	streak (adjective)
marked with or as if with stripes or linear discolorations

streaky (verb)	streak (verb)
	mark with spots or blotches of different color or shades of color as if stained
	move quickly in a straight line
	run naked in a public place