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
☆☆ DISAPPOINTMENT Noun 失望失望 sự thất vọng
☆ RATHER DISAPPOINTED; DISAPPOINTING Adjective 失望 스럽다 失望 thất vọng