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
☆☆☆ EXPRESS BUS Noun 高速 bus 高速大巴，高速巴士 xe buýt cao tốc, xe buýt tốc hành
☆☆ HIGH SPEED Noun 高速高速 cao tốc
☆ SUPERHIGH SPEED; ULTRAFAST SPEED Noun 超高速超高速 siêu tốc