편리convenience; handiness 이용use; utilization 권리right; authority; power 불리disadvantage 불이익disadvantage; penalty; detriment 승리victory 유리being profitable; being beneficial 이기적being selfish; being egoistic; being egocentric 이기적selfish; self-centered; egotistic 이용객user; passenger; visitor

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

청취율ratings 할인율discount rate 환율exchange rate 효율적being efficient; being effective 효율적efficient; effective 감소율reduction ratio 비율ratio; proportion 비효율적being inefficient 비효율적inefficient 사망률death rate