noun
1.
an open space in a barrier
the sheep got through a gap in the fence
Synonyms: breach, break, discontinuity, hole, opening
Related Word: fracture, rupture; chink, cleavage, cleft, crack, crevice, fissure, slit, slot; division, interspace, interval, separation; aperture, cranny, orifice
2.
Synonyms: ravine , arroyo, chasm, cleft, clough, clove, gorge, gulch
3.
a period of discontinuity
a gap of an hour between speakers
Synonyms: breach, break, hiatus, interim, interruption, interval, lacuna; compare pause
Related Word: caesura, intermission, lull, pause, respite, rest