annul
To formally revoke the validity of.
Other meanings
To dissolve (a marital union) on the grounds that it is not valid.
Related words
- annullability
- annullable
- annuller
- disannul
- annulment
Word history
From Latin "annullō" (annihilate, annul).
Where this comes from
This definition is adapted from “annul” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.