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 SINGLE; BEING UNMARRIED Noun 未婚未婚 chưa kết hôn, người chưa kết hôn
☆ UNMARRIED MOTHER; SINGLE MOTHER Noun 未婚母未婚母亲 người mẹ đơn thân