backtracking

/B AE1 K T R AE0 K IH0 NG/
verb
  1. 1

    To retrace one's steps.

    โ€œI dropped my sunglasses and had to backtrack to find them.โ€

  2. 2

    To repeat or review work already done.

    โ€œIf we backtrack through this problem, maybe we can figure out where we went wrong.โ€

  3. 3

    To taxi down an active runway in the opposite direction to that being used for takeoff.

    โ€œSpeedbird One: enter and backtrack Runway 27 Left.โ€

  4. 4

    To exercise a racehorse around the racetrack in the opposite direction to that in which races are run.

noun
  1. 1

    (countable, uncountable) The act of one who, or that which, backtracks; a retracing of one's steps.

  2. 2

    The usage of a runway as a taxiway, especially at private strips and smaller airports.

  3. 3

    The act of building all possible solutions to a problem incrementally, abandoning any candidate solution if it cannot lead to a valid solution.

Source: https://en.wiktionary.org/wiki/backtrack, https://en.wiktionary.org/wiki/backtracking