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
☆☆ SCRATCH Verb 挠，搔 gãi, cạy
☆ CRACK; SCRATCH; SCAR Noun 欠瑕疵，缺损 vết sẹo, vết sứt
☆ SCRATCH; CLAW Verb 抓破，挠破 cào, gãi, cấu