1. To do or think something that is wrong, or that is not what you intended to do or think. English = make a mistake, (be) mistaken.
2. To be wicked and enjoy doing things that harm other people. English = (be) evil.
3. To be extremely dirty. English = (be) filthy.
4. Of food, to no longer be fresh and to have started to rot. English = (be) rotten.