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
☆☆ NATIONAL FLAG Noun 国旗国旗 quốc kỳ
☆☆ STEADY; CONSTANT; UNFLAGGING Adjective 勤奋，不懈，一如既往 liên tục, bền bỉ
☆ FLAG Noun 旗旗，旗帜 cờ, ngọn cờ
☆ FLAGSHIP Noun 主力主力 chủ lực
☆ FLAG Noun 旗 발 旗，旗帜，旗子 cờ, lá cờ, cờ hiệu