posthouse posthole • posthumeral · · · Info · Definitions · Synonyms · Characters · · posthouse · · Text Latin · · Script 9 · · Length Definitions · · · (noun) an inn for exchanging post horses and accommodating riders. Synonyms: post house. · · Noun Definition 1 Synonyms · · · post house · · Synonym 1 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 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 u latin small letter u U+0075