streak

Mark with spots or blotches of different color or shades of color as if stained.

Move quickly in a straight line.

“The plane streaked across the sky”

Run naked in a public place.

An unbroken series of events.

“had a streak of bad luck”

A narrow marking of a different color or texture from the background.

A distinctive characteristic.

“he has a stubborn streak”

“a streak of wildness”

A sudden flash (as of lightning).