flap
US /flæp/
UK /flæp/

1.
falda, patta
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.
Sollevò la falda della tenda e sbirciò all'interno.
•
The envelope had a sticky flap.
La busta aveva una patta adesiva.
1.