- (n.) Power efficiently and forcibly exerted; vigorous or effectual operation; as, the energy of a magistrate.
- (n.) Capacity for performing work.
- (n.) Internal or inherent power; capacity of acting, operating or producing an effect, whether exerted or not; as, men possessing energies may suffer them to lie inactive.
- (n.) Strength of expression; force of utterance; power to impress the mind and arouse the feelings; life; spirit; -- said of speech, language, words, style; as, a style full of energy.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). energy. Retrieved September 20, 2026, from http://smartdefine.org/energy/definitions/2003286 |
| Chicago | Webster's. 2011. "energy" http://smartdefine.org/energy/definitions/2003286 (accessed September 20, 2026). |
| Harvard | Webster's 2011, energy, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/energy/definitions/2003286>. |
| MLA | Webster's. "energy" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/energy/definitions/2003286> |