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
☆☆ RESEARCHER Noun 硏究员研究员 nhà nghiên cứu
☆☆ RESEARCH INSTITUTE Noun 硏究所研究所 viện nghiên cứu
☆☆ RESEARCH; STUDY Noun 硏究研究 sự nghiên cứu
☆☆ RESEARCHER Noun 硏究者研究者 nhà nghiên cứu