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
☆☆☆ CLEANING Noun 淸扫打扫，清扫，扫除 việc quét dọn, việc lau chùi, việc dọn dẹp
☆☆ DRY-CLEANING Noun dry cleaning 干洗 giặt khô
☆☆ BIG CLEANUP; GENERAL HOUSE CLEANING Noun 大淸扫大扫除 việc tổng vệ sinh