재생resurrection 재시험re-test 재작년the year before last year 재활용recycling 재활용품recyclable item 비일비재frequent occurrence; being commonplace 재가remarriage 재개resumption 재개발redevelopment 재건rebuilding

담임homeroom teacher; being in charge of class 임무mission; duty; assignment 책임duty; responsibility; obligation 책임감sense of responsibility 책임자person in charge 초임first post; first duty 취임inauguration; taking office 취임사inaugural address; inauguration speech 취임식inauguration; inaugural ceremony 퇴임retirement

사용use; usage 이용use; utilization 학용품stationery; writing supplies 활용use; utilization 가정용home use 가정용품housewares; household goods 공공용public purpose 공공용지public land 공용public use; official business 공용public use