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
☆☆ MIDNIGHT; DEAD OF THE NIGHT Noun 밤 中深夜，深更半夜 nửa đêm
☆ MIDNIGHT Noun 子正子夜，午夜 nửa đêm