원고manuscript; script 원고지squared manuscript paper 원리principle; fundamental 원인cause; reason 원칙rule; principle 초원grassland; meadow; plain 평원plain; prairie 항원antigen 고원plateau 대원칙great principle; basic principle

시작start; beginning 개시beginning; start; opening 개시일D-day; opening day 시구first pitch of a baseball game 시동start; initiate 시말서written apology and explanation 시무식meeting to launch the New Year 시발departure 시발점departure point 시점starting point

침엽수림coniferous forest 휴양림recreational forest 밀림jungle; dense forest 방풍림shelterbelt; windbreak 산림forest 산림욕장(no equivalent expression) 삼림forest; woods 삼림욕forest bathing 송림pine forest 열대림tropical forests