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
☆☆ GROUP; SOCIETY; ASSOCIATION Noun 团体团体，集体，团伙 tổ chức
☆☆ SOCIETY Noun 社会社会 xã hội, cộng đồng
☆ ELITE; HIGH SOCIETY; UPPER CLASS Noun 上流层上流层 tầng lớp thượng lưu
☆ ASSOCIATION; SOCIETY Noun 协会协会 hiệp hội