국내interior of a country; domestic territory 내과internal department 내용content; substance 시내downtown 안내introduction 안내문letter of notice; notice; introduction 안내인guide; docent; receptionist 교내being in school 국내선local line; domestic service 국내적local; domestic

해외foreign country; overseas 해외여행overseas travel; trip abroad 외국foreign country 외국어foreign language 외국인foreigner 외출going out; outing 과외extra work 교외suburb; outskirts 교외out-of-school; off-campus 국외outside a territory

타산지석learning from someone else's mistakes; lesson from someone else's failures 파죽지세irresistible force; crushing power 형제지간sibling relationship 호구지책means of livelihood; method of eking out 호연지기magnanimousness; gallantry; great spirit 감지덕지very thankfully 감지덕지very thankfully 격세지감being amazed at how much things have changed in a short time 견원지간cat-and-dog terms 결자해지one's untying a knot one has tied

시간time 인간human being 중간middle; midway 간식snack 기간period; term 시간time 시간hour 시간표schedule 점심시간lunchtime 중간middle