third house third-hand • thirdings · · · Info · Definitions · Synonyms · Characters · · third house · · Text Common · · Latin · · Scripts 11 · · Length 2 · · Syllables Definitions · · · (noun) a group of people who try actively to influence legislation. Synonyms: lobby, pressure group, third house. · · Noun Definition 1 Synonyms · · · lobby · · Synonym 1 pressure group · · Synonym 2 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075