아무

The Korean determiner 아무 roughly translates to "any."

In positive sentences, it is combined with the particle -(이)나, and in negative sentences, it is used with -도.

아무

any (determiner)

아무

anyone (noun)

아무것

anything

아무 데

anywhere

Examples

아무나 올 수 있어요.

Anyone can come.

아무도 없어요?

Nobody is here?

아무것도 몰라요.

I don't know anything.

아무 데도 안 갈 거예요.

I'm not going anywhere.

With -(으)면 안 되다

아무 is often used with the -(으)면 안 되다 construction to express a notion of "you shouldn't [v.] just anything," suggesting that the listener should be mindful about who/what they interact with.