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
☆☆ PEEP; LOOK FURTIVELY; STEAL A GLANCE Verb 偷看，偷窥 nhìn lén, nhìn trộm
☆ STEAL A GLANCE; PEEP Verb 偷看，窥视 nhìn trộm, nhìn lén