postbox postbiblical • postboy · · · Info · Definitions · Synonyms · Characters · · postbox · · Text Latin · · Script 7 · · Length 2 · · Syllables Definitions · · · (noun) public box for deposit of mail. Synonyms: mailbox, letter box. · · Noun Definition 1 Synonyms · · · mailbox · · Synonym 1 letter box · · Synonym 2 Characters · · b latin small letter b U+0062 o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078