The act of one who, or that which, backtracks; a retracing of one's steps.
The usage of a runway as a taxiway, especially at private strips and smaller airports.
The act of building all possible solutions to a problem incrementally, abandoning any candidate solution if it cannot lead to a valid solution.
The act of moving from one place to another.
The assigning of addresses to variables either at linkage editing, or at runtime.
Renewal of a lease.