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
☆☆☆ CLOCK Noun 时计钟，表 đồng hồ
☆☆ WALL CLOCK Noun 壁时计挂钟，壁钟 đồng hồ treo tường
☆☆ WRISTWATCH Noun 손목 时计手表 đồng hồ đeo tay
☆ ASSIMILATION Noun 同化同化 sự đồng hoá