annul

verb
UK /əˈnʌl/
US /əˈnʌl/

To cancel something so it no longer counts.

The judge decided to annul the marriage.


OTHER MEANINGS

2. To make a law or agreement officially invalid.

The court annulled the old contract.

3. To declare a marriage invalid from the start.

They asked the church to annul their wedding.

4. To wipe out or destroy completely.

The storm annulled all signs of the camp.