山やま口ぐち県けんMeaningsNoun1. Yamaguchi Prefecture (Chūgoku area)Kanji used山mountain口mouth県prefectureComposed of山やま口ぐちYamaguchi (city, prefecture)Noun県けんprefecture (of Japan); county (of China, Taiwan, Norway, etc.); department (of France); province (of Italy, Spain, etc.)Noun