intransitive. To make a sudden movement; to dash, fly, rush, spring, start. Of light: To flash. Of tears, water: To pour, rush. Occasionally with…

To shine suddenly; to make a flash. Obsolete.

intransitive. Of fire or light: To break forth suddenly. Of lightning: To break forth repeatedly, to play. Of a combustible, a gun, etc.: To give…

Of a light, a burning or glowing object, etc.: To emit quick intermittent flashes; to twinkle. (Now associated with sense 8.) Also with adverbs…

intransitive. To emit light or sparks suddenly.

poetic. Applied to the quick movement of flame and light: To flash, gleam, quiver, glisten. Cf. flicker, v. 6.

intransitive. To flash out.

figurative (intransitive and transitive) To flash.