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
☆☆☆ WHAT AMOUNT; WHAT NUMBER; WHAT PRICE Noun 多少 bao nhiêu
☆☆ SOME; SOMEWHAT Noun 얼마 间多少 (không) đáng bao nhiêu, một ít