To leave suddenly.
To notch, as a sword or knife.
To check the size of a gap.
To make an opening in; to breach.
A vacancy, deficit, absence, or lack.
The shortfall between the amount the medical insurer will pay to the service provider and the scheduled fee for the item.
An opening in anything made by breaking or parting.
A hiatus, a pause in something which is otherwise continuous.
An opening allowing passage or entrance.
An opening that implies a breach or defect.
(usually written as "the gap") The disparity between the indigenous and non-indigenous communities with regard to life expectancy, education, health, etc.
An unsequenced region in a sequence alignment.
The regions between the outfielders.
A vacant space or time.
A mountain or hill pass.
A sheltered area of coast between two cliffs (mostly restricted to place names).
A bond or link signifying union.
A ligament that limits the movement of an organ or part.
A horizontal line over the top of some of the terms in an expression, indicating that that part of the calculation is to be done before other parts.
Specifically, the horizontal line between the numerator and denominator in a fraction.