Nautical, Transport 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
Fashion, LifestyleIn particular A rod-shaped button bound with slack to the fabric.
3
A toggle switch.
4
An appliance for transmitting force at right angles to its direction.
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
A fastener that has flaps that align vertically to penetrate a surface and then spread out to secure the fastener in position, e.g. a molly bolt.
Hooks come with screws for use in plaster or wood and toggles for use in wallboard.1991, Kalton C. Lahue, Cheryl Smith, Interior Lighting, page 19:
7
Hobbies, Lifestyle, Skydiving, Sports 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.
Etymology Of uncertain origin. Possible alteration of tug (“to pull”) + -le
1
To alternate between two positions using a single switch or lever.
Clicking a button will alternately toggle its light on OR off.
2
To switch between alternate states.
toggle to lower/upper case
You can quickly toggle the case of selected text by pressing Alt+C.
1 more example
He’s that rare creature who’s equally powerful in the classics and popular fare, who’s dedicated to toggling between stage and screen. He is both prolific and enigmatic, disappearing into a dazzling range of characters.2022 October 22, Maureen Dowd, “Ralph Fiennes, Master of Monsters”, in The New York Times: