purge

To clear (a container or space, for example) of something unclean or unwanted.

To remove or eliminate (unwanted physical matter).

To rid (a person or thing) of something unwanted.

To remove or eliminate (an unwanted element).

To clear (a person) of a charge or conviction.

To rid (a nation or political party, for example) of people considered undesirable.

To get rid of (people considered undesirable).