granduncle grandstander • grane · · · Info · Definitions · Synonyms · Characters · · granduncle · · Text Latin · · Script 10 · · Length Definitions · · · (noun) an uncle of your father or mother. Synonyms: great-uncle. · · Noun Definition 1 Synonyms · · · great-uncle · · Synonym 1 Characters · · 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 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075