English Noun grandfather The father of someone's father. The father of someone's mother. Translations Arabic: جدّ Breton: tad-kozh m (1,2) Bulgarian: прадядо m (1, 2) Dutch: grootvader m, opa, m, opoe m (Holland), bompa m (Flanders) Finnish: isoisä, vaari, ukki (1, 2); isänisä (1), äidinisä (2) French: grand-père m (1, 2) Frisian: pake German: Großvater m, Opa m Guaraní: taita guasu Hebrew: סבא m Indonesian: kakek Interlingua: avo, granpatre Italian: nonno m (1, 2) Japanese: お爺さん (おじいさん, ojīsan) Latin: avus m Polish: dziadek Portuguese: avô m Romanian: bunic m, tataie m, tata mare m Russian: дед, дедушка Spanish: abuelo m (1, 2) Thai: ก๋ง Tupinambá: amỹîa (t-, t-) Related words grandchild grandmother