gap space hiatus void hole break blank cavity interval opening vacuity rift aperture gulf interstice crack breach cleft rent slot separation fissure cranny chasm vacancy orifice emptiness rupture cut blankness notch slit fracture nothingness omission vacuum crevice nihility split hollow voidness foramen division defile gully canyon gorge gulch ravine clove breadth crevasse interspace pause compass amplitude flaw headway vent outlet perforation puncture chink leak gash tear passage discontinuity peephole incision keyhole eyelet window tunnel spyhole nick loophole nullity run mouth lack oblivion want abyss hollowness pit rip slash check pinhole cleavage prick pore groove laceration inlet divide punch spout fault