postbox
nounUK /ˈpəʊst.bɒks/
US /ˈpoʊst.bɑːks/
A box on the street where you put letters to send them.
She dropped the birthday card into the red postbox.
RELATED WORDS
OTHER MEANINGS
2. A small box at home where mail is delivered.
The postman left a package in our postbox.
3. A private box rented at a post office for receiving mail.
They rent a postbox because their street has no home delivery.
4. A box for leaving messages or papers for someone.
Leave your form in the postbox outside the office door.