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
☆☆ BEING UNUSUAL; BEING UNIQUE; BEING SPECIAL Noun 特殊特殊，特别，特异 sự đặc thù
☆ BEING SPECIAL Noun 特别特别 sự đặc biệt