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: hậu độ 厚度

KOREAN 3.0	Eng	Wordtype	Etym.	Gb	Vie
☆☆	THICKNESS	Noun		厚度	bề dày, độ dày