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
☆☆☆ DANCE Noun 舞蹈 việc nhảy múa
☆☆ DANCE Noun 舞踊舞蹈 múa
☆ CONTEST Noun 竞演竞赛，大赛，歌唱比赛，舞蹈大赛 sự tranh tài, cuộc tranh tài, sự tranh đua