lightning
lightning (lītʹnĭng) noun
1. a. An abrupt, discontinuous natural electric discharge in the atmosphere. b. The visible flash of light accompanying such a discharge.
2. Informal. A sudden, usually improbable stroke of fortune.
verb, intransitive
lightninged (-nĭngd), lightning, lightnings
To discharge a flash of lightning.
adjective
Moving or occurring with remarkable speed or suddenness.
[Middle English gerund of lightnen, to illuminate, lighten (lightnen, from lighten), from Old English līhtan.]