옷을

옷을

"옷을" means "clothes" (object form).

Here, '옷을' is the object of the verb '샀어요' (bought). It specifies what was purchased, the 'clothes'.

나는 새 옷을 샀어요.

I bought new clothes.

In this sentence, '옷을' is the object of '입지 않은' (not wearing). It refers to the 'clothes' not being worn by someone.

옷을 입지 않은 사람이 있다.

There is a person not wearing clothes.

The word '옷을' here is the object of '정리하다' (organize). It identifies the item that needs organizing, the 'clothes'.

너는 옷을 정리해야 해.

You need to organize the clothes.