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
☆☆☆ SAFETY Noun 安全安全 sự an toàn
☆☆ SAFETY BELT Noun 安全 띠 安全带 dây an toàn
☆ SAFETY BELT Noun 安全 belt 安全带 dây an toàn