1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Core Words Familarize yourself with the 'core words'.
Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
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ETYMOLOGY

KOREAN 3.0 Eng Wordtype Etym. Gb Vie
☆☆☆ YOUNGER BROTHER Noun 男 동생 弟弟 em trai
☆☆☆ YOUNGER SISTER Noun 女 동생 妹妹 em gái
☆☆☆ A pronoun used to indicate the listener when he/she is the same age or younger. Pronoun 你 bạn, cậu, mày
☆☆ YOUNGER Noun 晚辈，后辈，小辈 người dưới
☆ BEING YOUNGER; YOUNGER PERSON Noun 年下年龄小，年纪轻 sự kém tuổi
☆ OLDER AND YOUNGER ALUMNI Noun 先后辈师兄弟，前后辈 anh chị khóa trước và đàn em khóa sau