Crossword clues for the word: LETTERBOX The word LETTERBOX has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for LETTERBOX Showing 1 to 11 of 11 results Clue(s) *TV screen film format DVD format Format for some DVDs Home video format Landlord to fight for door opening Mail receptacle Mail slot Slot in a front door Through which to deliver improved hair, according to Spooner TV screen format What security-concious Spooner has fitted to front door