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
☆☆ BOOKS; PUBLICATIONS Noun 书籍书籍，书 sách, ấn phẩm (nói chung)
☆☆ ROUGHLY Adverb 大体 로 大体来说 nói chung