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
☆ NOTICE; PUBLIC ANNOUNCEMENT; NOTIFICATION Noun 公告公告，公布 sự thông báo, sự thông cáo
☆ NOTIFICATION; INFORMING Noun 通报通报 việc thông báo