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
☆☆☆ LEFT; LEFT SIDE Noun 左边 bên trái
☆☆ LEFT; LEFT SIDE Noun 左侧左侧，左边 phía trái
☆☆ LEFT SIDE Noun 왼 便左边，左面 phía bên trái