Definition of "Streak" :

noun: a narrow marking of a different color or texture from the background

noun: a distinctive characteristic

"He has a stubborn streak."

noun: a sudden flash (as of lightning)

noun: an unbroken series of events

"Had a streak of bad luck."

verb: mark with spots or blotches of different color or shades of color as if stained

verb: run naked in a public place

verb: move quickly in a straight line

"The plane streaked across the sky."