great-grandmother great-grandfather • great-grandson · · · Info · Definitions · Characters · · great-grandmother · · Text Common · · Latin · · Scripts 17 · · Length Definitions · · · (noun) a mother of your grandparent. Synonyms: great grandmother. · · Noun Definition 1 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 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 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074