gap

[1]

breach

[1]	spread , opening , space , aperture , distance , hole , void , gulf , cavity , break , breach , crevice , chink , crack , split , division , cleft , rift , rip , tear , rent , interruption , interval , lacuna , hiatus , discontinuity , disruption , lull , pause , rest , recess , halt , stop , suspension , delay , wait , intermission , respite
[2]	difference , opening , divergence , disparity , disagreement , inconsistency , discrepancy , division , distinction
[3]	crack
[4]	col
[5]	break , interruption , disruption