1. to remove from an official register or list; to cancel the registration of

Examples

• The company decided to deregister its trademark after discontinuing the product line.
• Students must deregister from courses before the deadline to receive a refund.
• The medical board voted to deregister the physician for professional misconduct.
• You can deregister your vehicle online through the state's motor vehicle department.
• After moving abroad, she deregistered from the voter rolls in her home state.
• The charity was deregistered when it failed to file required annual reports.