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
☆☆ COWORKER; COLLEAGUE Noun 同僚同事，同僚 đồng liêu, đồng nghiệp
☆ ENEMIES ON ALL SIDES; BEING BELEAGUERED; NO WAY OUT; BEING STUCK Noun 四面楚歌四面楚歌 tứ cố vô thân
☆ LEAGUE Noun league 球队，社团 đội đấu theo vòng