사四 four 사계절四季節 four seasons 사십四十 forty 사월四月 April 사방四方 four directions 사촌四寸 cousin 고종사촌姑從四寸 cousin by paternal aunt 문방사우文房四友 The Four Friends of the Study 사각四角 quadrangle; being quadrangular 사각형四角形 quadrangle; square 사경四更 the fourth watch of the night 사계四季 four seasons 사골四骨 beef leg bone; beef shank bone 사군자四君子 sagunja 사대문四大門 sadaemun 사면四面 all sides 사면초가四面楚歌 enemies on all sides; being beleaguered; no way out; being stuck 사방팔방四方八方 being in all directions; being all over the place; everywhere 사분기四分期 quarter 사자성어四字成語 four-character idiom 사족四足 four legs 사주四柱 saju 사주팔자四柱八字 sajupalja 사중주四重奏 quartet 사지四肢 limbs 사차원四次元 fourth dimension; being fourth-dimensional 사해四海 four seas 외사촌外四寸 maternal cousin 이종사촌姨從四寸 cousin by a maternal aunt 정사각형正四角形 square 직사각형直四角形 rectangle 이십사절기二十四節氣 twenty-four seasonal divisions