フラップ
Meanings
1
Aviation term for the hinged surface on the trailing edge of an aircraft wing, used to increase lift or drag.
The pilot lowered the flaps before landing.
2
seal flap (envelope)
Refers to the foldable part of an envelope used to seal it; also used for similar flaps on packaging.
I sealed the envelope flap with glue.
Usage patterns
- フラップを下げるto lower the flaps (of an aircraft)
The flaps were lowered before landing.
- 封筒のフラップthe flap of an envelope
I sealed the envelope's flap firmly.
- フラップを上げるto raise the flaps (of an aircraft)
After takeoff, the flaps were raised.