개교establishment of a school 개교기념일school anniversary 개교식school opening ceremony 개발development; exploitation 개발비development expense 개방opening; opening to the public 개봉관first-run theater 개봉작new release 개업의private practice physician 개원opening of a hospital; opening of an institute

한국Korea 한국어Korean (language) 국어national language 국민citizen 출입국departure; entry 국가nation 출국leaving a country 입국entering a country 국왕king (of a nation) 왕국kingdom