flap
US /flæp/
UK /flæp/

1.
aba, retalho
a piece of something thin, such as cloth, paper, or metal, that is attached to a main part along one side but is free on the other sides, and can be lifted up or folded
:
•
He lifted the tent flap and peered inside.
Ele levantou a aba da barraca e espiou para dentro.
•
The envelope had a sticky flap.
O envelope tinha uma aba pegajosa.
1.