grand duchess grand-ducal • grand duchy · · · Info · Definitions · Characters · · grand duchess · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) the wife of a grand duke or a woman holding that rank in her own right. Synonyms: grand duchess. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075