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
☆☆☆ GOING OUT; OUTING Noun 外出外出，出行，出门 sự ra ngoài, sự tạm vắng
☆☆ CLOTHES FOR GOING OUT; OUTING WEAR Noun 外出服外出服 quần áo mặc khi ra ngoài