1. (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.

2. (v. t.) To notch, as a sword or knife.

3. (v. t.) To make an opening in; to breach.

abysm abyss aperture arrearage arroyo bottom bottom glade bottoms box canyon breach break breakage broaching burst caesura canyon cavity cessation chap chasm check chimney chink chip clearing cleavage cleave cleft cleuch clough clove col coulee couloir crack cranny crevasse crevice cut cut apart cwm dale defalcation defect deficiency deficit defile dehisce delay dell difference dike dingle disagreement disclosure discontinuity discrepancy disparity disruption distance distinction ditch divergence division donga draw excavation fault fenestra fissure fistula flaw flume fontanel foramen fracture furrow gape gash gat gill glen gorge groove grove gulch gulf gully halt hang open hiatus hole hollow incise incision inconsistency inlet interim intermission interruption interspace interval intervale joint kloof lack lacuna laying open leak letup lull lunar rill missing link moat need notch nullah omission open opening opening up orifice oscitate outage outlet pass passage passageway pause pore ravine recess rent respite rest rift rime rip rive rupture scale scissure seam separation shortage slash slice slit slot space splinter split stoma stop strath suspension tear throwing open trench trough ullage uncorking unstopping vale valley void wadi wait want wantage yawn