岡おか山やま県けんMeaningsNoun1. Okayama Prefecture (Chūgoku area)Kanji used岡rising ground山mountain県prefectureComposed of岡おか山やまOkayama (city, prefecture)Noun県けんprefecture (of Japan); county (of China, Taiwan, Norway, etc.); department (of France); province (of Italy, Spain, etc.)Noun