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
☆☆☆ OCCUR Verb 想起，想出 nghĩ ra
☆ IDEA; THINKING Noun 发想想法，意见，构想 sự phát tưởng, sự nghĩ ra, ý tưởng