stamp tax stamp rock • stamp-licking · · · Info · Definitions · Synonyms · Characters · · stamp tax · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) a tax collected by requiring a stamp to be purchased and attached (usually on documents or publications). Synonyms: stamp tax, stamp duty. · · Noun Definition 1 Synonyms · · · stamp duty · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 m latin small letter m U+006D 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