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
☆☆ NUMEROUS; ABUNDANT Adjective 数 많다 无数，众多 vô số
☆ NUMEROUSLY Adverb 无数 히 无数地 vô số
☆ PLENTY OF; NUMEROUS; A LARGE NUMBER OF Adjective 多得多，百出 đông đúc, vô số, đầy
☆ NUMEROUS Adjective 无数 하다 无数，数不清 vô số