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
☆ TIGHTNESS Noun 密着紧贴 sự dính chắc, sự bám chặt
☆ THRUST BEFORE; PUT CLOSE TO Verb 紧贴，紧靠 đưa sát, dí