Topic: AIR
 |
| |||||||||
flap1
1 a thin flat piece of cloth, paper, skin etc that is fixed by one edge to a surface, which you can lift up easily : 
the tent flapA loose flap of skin covered the wound. ➔ cat flap
flat piece of something
[countable]the tent flapA loose flap of skin covered the wound.2 the noisy movement of something such as cloth in the air : the flap of the sails
movement
[singular]the flap of the sails3 a situation in which people feel very excited or worried about something ➔ unflappable
excitement/worry
a flap
informal4 a part of the wing of an aircraft that can be raised or lowered to help the aircraft go up or down
