/ ˈtɒgl; NAmE ˈtɑːgl/ noun , verb
■ noun
1.
a short piece of wood, plastic, etc. that is put through a loop of thread to fasten sth, such as a coat or bag, instead of a button
2.
(also ˈtoggle switch ) ( computing ) a key on a computer that you press to change from one style or operation to another, and back again
■ verb
( computing ) to press a key or set of keys on a computer keyboard in order to turn a feature on or off, or to move from one program, etc. to another :
[ v ]
He toggled between the two windows.
[ vn ]
This key toggles various views of the data.
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WORD ORIGIN
mid 18th cent. (originally in nautical use): of unknown origin.