- (n.) A discharge of atmospheric electricity, accompanied by a vivid flash of light, commonly from one cloud to another, sometimes from a cloud to the earth. The sound produced by the electricity in passing rapidly through the atmosphere constitutes thunder.
- (n.) The act of making bright or the state of being made bright; enlightenment; brightening, as of the mental powers.
- (vb.n.) Lightening.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). lightning. Retrieved September 20, 2026, from http://smartdefine.org/lightning/definitions/2027875 |
| Chicago | Webster's. 2011. "lightning" http://smartdefine.org/lightning/definitions/2027875 (accessed September 20, 2026). |
| Harvard | Webster's 2011, lightning, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/lightning/definitions/2027875>. |
| MLA | Webster's. "lightning" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/lightning/definitions/2027875> |