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

HAN VIET: thanh minh 声明

KOREAN 3.0	Eng	Wordtype	Etym.	Gb	Vie
☆	CLEAR STATEMENT	Noun	宣言	声明	sự tuyên bố