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
☆☆☆ BE GLAD; BE HAPPY Verb 高兴，欢喜 vui mừng, vui sướng
☆☆☆ HAPPY; GLAD Adjective 高兴，开心 vui
☆☆ BECOME HAPPY; BECOME DELIGHTED; BECOME ELATED Verb 兴高采烈，兴奋 hứng khởi, hứng thú
☆ HAPPY; HARMONIOUS Adjective 团栾 하다 和睦，温馨 hòa thuận, đầm ấm
☆ UNHAPPY; DISSATISFIED Adjective 不满意，不顺心 không hài lòng, không thỏa mãn
☆ HAPPY; JOYFUL; MERRILY Adjective 兴 겹다 兴致勃勃，兴味盎然，兴冲冲 thú vị, thích thú, vui thích