toggle

/T AA1 G AH0 L/
noun
  1. 1

    A wooden or metal pin, short rod, crosspiece or similar, fixed transversely in the eye of a rope or chain to be secured to any other loop, ring, or bight, e.g. a sea painter to a lifeboat.

  2. 2

    (in particular) A rod-shaped button bound with slack to the fabric.

  3. 3

    A toggle switch.

  4. 4

    An appliance for transmitting force at right angles to its direction.

  5. 5

    A horizontal piece of wood that is placed on a door, flat, or other wooden structure, but is not on one of the edges of the structure.

  6. 6

    (skydiving) A loop of webbing or a dowel affixed to the end of the steering/brake lines of a parachute providing the pilot with a means of control.

verb
  1. 1

    To alternate between two positions using a single switch or lever.

    Clicking a button will alternately toggle its light on OR off.

  2. 2

    To switch between alternate states.

    You can quickly toggle the case of selected text by pressing Alt+C.

  3. 3

    To fix like a toggle iron; to fix fast.

Source: https://en.wiktionary.org/wiki/toggle