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.

KOREAN 3.0	Eng	Wordtype	Etym.	Gb	Vie
☆☆	JOINING; SIGNING UP; ENTRY	Noun	加入	加入	sự gia nhập, sự tham gia
☆	PARTICIPATION; INVOLVEMENT; COMPLICITY	Noun	加担	参与，参加，加入	sự hợp tác, sự trợ giúp