Definition
An ATC instruction directing a pilot to carry out a previously discussed or assigned procedure, clearance, or maneuver immediately. When the controller says "execute," the pilot is expected to begin the action without further coordination.
Plain English
A controller's word telling you to go ahead and do the thing that was already set up — start it now.
Context Anchor
Heard in radio instructions when a controller wants a pilot to start an action that has already been assigned or described.
Derivation
From the Latin exsequi, meaning "to follow through" or "carry out to completion." In ATC use, it keeps that original sense — finish what was started, do what was prepared.
Why Pilots Care
The word removes any doubt about timing, ensuring the pilot begins a safety-critical action without delay or further confirmation.
Intuition Check
Do not read execute as simply “understand the instruction.” In this context, it means begin and carry out the action.
Example Sentence 1
Cleared for the approach; if you go around, execute the published missed approach.
Example Sentence 2
When cleared to the airport, the pilot executed the visual approach as previously described by ATC.