plural of lightning bug

(US, informal) Applejack.

(US, dated, slang) Bullets; gunfire.

A single, visible discharge of lightning. / A conventional representation of a lightning bolt as a zigzag line.

plural of ball lightning

(idiomatic) Incredibly fast.

plural of upward lightning

(astronomy, meteorology) An upper-atmospheric optical phenomenon associated with thunderstorms, in which the lightning bolt projects straight into the upper atmosphere.

A lightning bolt, stroke of lightning, one of the events during an electrical storm when lightning strikes (an object on) the ground or an aircraft in flight.

Lightning strikes that occur when there is no rain, thus a common cause of bushfires or forest fires.