- (v.t.) To notch, as a sword or knife.
- (n.) An opening in anything made by breaking or parting; as, a gap in a fence; an opening for a passage or entrance; an opening which implies a breach or defect; a vacant space or time; a hiatus; a mountain pass.
- (v.t.) To make an opening in; to breach.
- (n.) The vertical distance between two superposed surfaces, especially in a biplane.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). gap. Retrieved September 22, 2026, from http://smartdefine.org/gap/definitions/2011307 |
| Chicago | Webster's. 2011. "gap" http://smartdefine.org/gap/definitions/2011307 (accessed September 22, 2026). |
| Harvard | Webster's 2011, gap, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/gap/definitions/2011307>. |
| MLA | Webster's. "gap" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/gap/definitions/2011307> |