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
☆☆ BE CROWDED; BE JAM-PACKED WITH Verb 拥挤 tấp nập, đông nghịt, chật ních
☆ CONFUSION; MESS; DISORDER Noun 混杂混杂，纷杂，混乱，拥挤 sự hỗn tạp, sự hỗn loạn