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
☆ OCCASIONALLY; SOMETIMES; FROM TIME TO TIME Adverb 间间 이 断断续续，时有 chốc chốc, thi thoảng, đôi khi, có khi