Definition
A switch with a projecting lever that is moved through a small arc to open or close an electrical circuit, typically having two positions (on/off) but sometimes three (on/off/on) or with momentary action.
Plain English
A small lever-style switch you flip up or down to turn something on or off. Most cockpit and panel switches are toggles.
Context Anchor
Seen in aircraft maintenance descriptions of switches, latches, controls, and small mechanical linkages on or around the engine and airframe.
Derivation
From an old nautical term for a short pin or rod passed through a loop to hold a rope in place. The pin pivoted in the middle, which is why a switch that pivots between two positions came to be called a toggle.
Why Pilots Care
Most cockpit switches are toggles, and knowing the type matters during preflight, troubleshooting, and emergency procedures — especially recognizing whether a switch is two-position, three-position, or guarded.
Intuition Check
Do not assume toggle only means an electrical switch. In maintenance writing, a toggle can also be a small pivoting mechanical link or latch part.
Example Sentence 1
The technician replaced the faulty toggle on the landing light circuit during the 100-hour inspection.
Example Sentence 2
During the inspection the mechanic tested each toggle switch for smooth movement and positive detent.