0 not anything -- 아무것도
1 not something important or valuable -- 사소한 것
She was crying about nothing.
2 without a successful result -- 헛되게
I came all this way for nothing.
3 to not involve or affect someone or something -- -와는 관계가 없는
4 used to emphasize you will have to do a particular thing to solve a problem -- -할 수 밖에는 없다 (강조)
5 used to say something is very easy -- 아주 쉬운
Windsurfing is easy – there’s nothing to it.