Is “Postbox” a Scrabble word?
Yes
POSTBOX
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Postbox
noun
1.A box in which post can be left by a sender to be picked up by a courier or postman (postal worker).
“Would you take these letters down to the post box please – they've already got stamps.”
Synonyms: letterbox, mailbox