四
사
As the first character — 10 words
사월
四月
april
TOPIK 1
사방
四方
four directions, all directions
TOPIK 4
사촌
四寸
cousin
TOPIK 3
사계절
四季節
the four seasons
TOPIK 2
사도
四都
four ancient cities of Joseon
Common
사
四
four
TOPIK 1
사각형
四角形
quadrilateral, quadrangle
TOPIK 6
사산
四山
stillbirth
Common
사주
四柱
four pillars (birth time)
Common
사십
四十
forty
TOPIK 1
20 other characters are also read 사
Characters it combines with
All 1,087 characters › — or read why hanja is worth an hour if this is the first one you have opened.
Hanja spellings, word meanings and TOPIK grades from the 국립국어원 한국어기초사전, used under CC BY-SA 2.0 KR.
The reading 사 is derived from the alignment between these words' Hangul and their hanja spellings, not taken from a character dictionary — which is also why no 훈 is shown.