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
☆☆ THE BEST Noun 最善最佳，最好 sự tuyệt nhất, sự tốt nhất
☆ THE BEST; ACE Noun 最优秀最佳，最优秀 sự xuất sắc nhất, sự ưu tú nhất
☆ THE BEST OF THE BUNCH Noun 群鷄一鹤鹤立鸡群 quần kê nhất hạc
☆ AS MUCH AS ONE CAN; TO THE BEST OF ONE'S ABILITY Adverb 千万 như có thể, với mức có thể, theo năng lực