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
☆☆☆ TRAFFIC ACCIDENT; CAR CRASH Noun 交通事故交通事故 tai nạn giao thông
☆☆☆ ACCIDENT Noun 事故事故 sự cố, tai nạn