(n.) The quality or state of being swift; speed; quickness; celerity; velocity; rapidity; as, the swiftness of a bird; the swiftness of a stream; swiftness of descent in a falling body; swiftness of thought, etc.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). swiftness. Retrieved September 21, 2026, from http://smartdefine.org/swiftness/definitions/2069405 |
| Chicago | Webster's. 2011. "swiftness" http://smartdefine.org/swiftness/definitions/2069405 (accessed September 21, 2026). |
| Harvard | Webster's 2011, swiftness, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/swiftness/definitions/2069405>. |
| MLA | Webster's. "swiftness" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/swiftness/definitions/2069405> |