clearancetofly
nounUK /ˈklɪərəns tə flaɪ/
US /ˈklɪrəns tə flaɪ/
Permission from someone in charge for a plane to take off.
The pilot waited for clearance to fly before starting the engines.
RELATED WORDS
OTHER MEANINGS
2. Official permission for an aircraft to enter or use a particular airspace.
The jet requested clearance to fly through the restricted zone.
3. Approval for a person to travel by air, especially after checks.
The rescue team got clearance to fly the medical supplies to the island.
4. A signal that conditions are safe enough for flying.
After the storm passed, the crew received clearance to fly.