gap

a conspicuous disparity or difference as between two figures; "gap between income and outgo"; "the spread between lending and borrowing costs"

an open or empty space in or between things; "there was a small opening between the trees"; "the explosion made a gap in the wall"

a narrow opening; "he opened the window a crack"

a pass between mountain peaks

a difference (especially an unfortunate difference) between two opinions or two views or two situations

an act of delaying or interrupting the continuity; "it was presented without commercial breaks"; "there was a gap in his account"

make an opening or gap in