1. to make an area or a thing clean; to pick up a mess; to tidy.
2. to become clean, handsome, smart in appearance, e.g. for a special occasion, especially when it is out of character to be seen as such.
3. to make a large profit; to win by a large margin, or to win a large amount, especially in gambling. also clean house.

1. put (things or places) in order
2. make a big profit; often in a short period of time
3. dispose of
4. make oneself clean, presentable or neat