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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
☆☆☆ EFFORT; ENDEAVOR; HARD WORK Noun 努力努力，下工夫 sự cố gắng, sự nỗ lực
☆☆☆ TROUBLE; EFFORT Noun 辛苦，受累 sự vất vả
☆ MAKING A UNITED EFFORT TO HELP A PERSON Noun 十匙一饭十匙一饭，积少成多 lá lành đùm lá rách
☆ MAKING ONE'S FORTUNE BY ONE'S OWN EFFORTS; SUCCEEDING ON ONE'S OWN Noun 自手成家白手起家 sự tự lập, sự tự thân làm nên
☆ VAIN EFFORT; FOOL'S ERRAND Noun 白费力，徒劳，白忙，白忙活，徒劳无功 sự tốn công vô ích, sự uổng công
☆ EASILY; WITHOUT EFFORT Adverb 轻而易举地 (nhấc) bổng
☆ EASY; EFFORTLESS Adjective 容易，轻松 dễ dàng, suôn sẻ, thuận lợi