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
☆☆ INSIDE AND OUTSIDE Noun 内外内外，里外 trong ngoài
☆☆ MATERNAL GRANDFATHER Noun 外 할아버지 外祖父，姥爷 ông ngoại
☆ APPEARANCE; EXTERIOR Noun 外向的外形的，外貌的 có tính hướng ngoại