grand duke

hereditary ruler of various European countries 大公（欧洲各国的世袭统治者）.

graft, grail, grain, graininess, grainy, gram, gram (also gramme), grammar, grammar school, grammarian, grammatical, grammatically, gramme, gramophone, gramophone record, grampus, gran, granary, grand, Grand Banks, grand finale, grand jury, grand master, grand opera, grand piano, Grand Prix, grand slam, grand total, grand tour, grand-, grand-dad (also grandad), grandchild, granddaughter, grandee, grandeur, grandfather, grandfather, grandmother, grandparent, grandfatherly, grandiloquence, grandiloquent,