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 이등병private; ordinary seaman; airman

팔eight 팔십eighty 팔월August 칠전팔기doggedness 팔도Korea 팔도강산paldogangsan 팔등신well-proportioned figure 팔방all directions; all sides 팔방미인beauty 팔불출good-for-nothing fellow

청년young person; youth 청소년teenager 청록색blue-green, turquoise 청과fresh produce 청과물fresh produce 청군blue team 청년기adolescence 청년층youth 청동bronze 청동기bronzeware

춘곤증spring fatigue 사춘기adolescence; puberty 청춘youth 춘경spring scenery 춘계spring season 춘궁기the farm hardship period; the spring lean season 춘삼월blooming March 춘심sexual desire; lust 춘정sexual desire; lust 춘추spring and fall