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
☆☆ DIFFERENCE Noun 差异差异，差别 sư khác biệt; độ chênh lệch
☆ DIFFERENCE; GAP Noun 差差别，差异 độ chênh lệch