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
☆☆☆ BITTER Adjective 苦 đắng
☆☆ BITTER TASTE Noun 苦味 vị đắng
☆ SWEETNESS AFTER BITTERNESS; NO PAIN, NO GAIN Noun 苦尽甘来苦尽甘来 khổ tận cam lai, khổ trước sướng sau
☆ WAILING LOUDLY; MOURNING BITTERLY Noun 大声痛哭大声痛哭，放声痛哭 việc gào khóc
☆ BITTER FEELING; GRUDGE; RESENTMENT Noun 怨望埋怨，抱怨，怨恨 sự oán giận, sự oán trách
☆ BITTERISH Adjective 发苦，苦涩 đăng đắng