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
☆☆☆ EIGHTY Determiner 八十 tám mươi
☆☆☆ EIGHTY Numeral 八十 tám mươi
☆☆☆ EIGHTY Determiner 八十八十 tám mươi