1. Marked by the use of makeup
2. (British) Having been paved.
3. When you invent a story to entertain or fool people, you make the story up. When you invent a lie to deceive people, you make the lie up.
4. After you make up your mind or make up your mind to do something, your mind is made up.
5. After people have put on make-up, they are made-up.