십이월December 이십twenty 이월February 일석이조killing two birds with one stone 신토불이belief that domestic farm products are the best 십이지장duodenum 유일무이being the one and only 이경second watch of the night 이등second; second class 이등분bisection

초등학교elementary school; primary school 초등학생elementary school student; primary school student 고등학교high school 고등학생high school student; high schooler 초등elementary class 평등equality 고등high-level 등et cetera 불평등inequality; disparity 일등first; first class

초년병new recruit 초병guard; sentry 취사병soldier on cook’s duty 탈영병deserter; runaway soldier 통신병signal corpsman; signalman 파병sending troops; dispatching troops 패잔병remnant of the enemy; straggler 포병gunner; artillery; artilleryman 해병marine 해병대marine corps