汉四郡 Traditional form: 漢四郡 Pinyin (reading): Hànsìjùn Definitions: four Han commanderies in north Korea 108 BC-c. 300 AD Characters: 汉 - Chinese people; Chinese language 四 - four 郡 - county, region, administrative division Traditional characters: 漢 - Chinese people; Chinese language 四 - four 郡 - county, region, administrative division