revoker
/ˈrɛvəkər/Definitions
1. noun
A person or thing that revokes or cancels something, such as a law, a contract, or a privilege.
“The government was seen as a revoker of individual freedoms.”
2. verb
To cancel or annul something, such as a law, a contract, or a privilege.
“The court decided to revoke the company’s license.”