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.
To notch, as a sword or knife.
To make an opening in; to breach.
The vertical distance between two superposed surfaces, esp. in a biplane.
The leader can never close the gap between himself and the group. If he does, he is no longer what he must be. He must walk a tightrope between the consent he must win and the control he must exert. Vince Lombardi
The great enemy of clear language is insincerity. When there is a gap between one's real and one's declared aims, one turns, as it were, instinctively to long words and exhausted idioms, like a cuttlefish squirting out ink. George Orwell