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'.
Wordsense Learn about the wordsenses of the english term.

ETYMOLOGY

KOREAN 3.0 Eng Wordtype Etym. Gb Vie
☆ UNLUCKY; OMINOUS Adjective 凶 하다 凶 không may, đen đủi
☆ FEELING UNEASY Adjective 不安，歉疚，不舒坦 e ngại