큰일1 [큰 사업] a great undertaking; a big[great] enterprise[task]; a big business; a big plan. ~을 이룩하다 achieve[do] a great thing[work]. ~을 계획하다 plan a big enterprise. 이건 꽤 ~이죠 This is quite a job, isn't it? 그놈은 꼭 ~을 할 걸세 He is sur+모두 보이기...e to do something big some day. ~은 작은 일에서 비롯된다 Great things have small beginnings.2 [중대한 일] a matter of grave concern[great consequence / great importance]; a serious[grave] affair; a great trouble; a disaster; no joke; an alarming accident. ~을 저지르다 cause[invite] a disaster / cause a serious trouble. ~을 저질렀군 Now you're done it! / See what you have done. 자네 ~을 저질렀구먼 Now you're done it! 너에게 무슨 일이 생기면 ~이다 What if anything should happen to you! 그놈은 하도 게으름쟁이라서 ~이야 I don't know what to do with him. He is such a lazy fellow. 그것은 ~이다 That's serious. 이대로 놔두면 ~나겠다 If we leave it like this, it will grow[develop] into a serious matter. ~이다, 호랑이가 우리에서 도망쳤다 Good God! The tigers gotten out of its cage! 그런 짓을 하면 ~이다 If you do something like that, it will have serious consequences. 한 발짝만 잘못 디디면 ~이다 A single false step could prove fatal[disastrous]. 들키면 나는 ~이다 If I am discovered, I am done for. 기차를 놓치면 ~이니 곧 떠나세요 Leave at once. You simply mustn't miss the train.3 [예식·잔치] a great occasion; a big ceremony[banquet]; a wedding; a funeral. ~이 닥쳐온다 A big occasion draws near.♣ 큰일(이) 나다 assume alarming[menacing / serious] proportions; grow[get] serious; face a matter of grave[serious] concern; face disaster. ~ 났다고 떠들다 cry alarm. 이거 ~ 났구나 Good Heavens! / We really are in trouble! / We are in for it. / Here's a (nice[pretty]) go. / What a fine fix we're in! ~ 날 사람이로군 What a man! / <口> He's a caution.♣ 큰일(을) 치르다 go through[carry out] a wedding[funeral].