Nantoka/사saBeginner사 (sa) is a Korean word meaning “four”.Meanings1fourPart of speechnumeralHanja四Related words사four사거리crossroads사계절four seasons사십forty사십forty사월April사방four directions사촌cousin정사각형square직사각형rectangle사각형quadrangle사자성어four-character idiomStudy Korean with flashcards →