streak vs streaker

streak and streaker both are nouns.

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

streak (noun)	streaker (noun)
a narrow marking of a different color or texture from the background	someone who takes off all their clothes and runs naked through a public place
a distinctive characteristic
a sudden flash (as of lightning)
an unbroken series of events

streak (verb)	streaker (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