山やま口ぐち組ぐみTop 25000MeaningsNoun1. Yamaguchi-gumi (yakuza syndicate)Kanji used山mountain口mouth組organized groupComposed of山やま口ぐちYamaguchi (city, prefecture)Noun組くみclass (of students); group (of people); party; team; crew; lot; bunch; set; crime family; organized-crime syndicate; …Noun