verb
annul
uh-NUL/əˈnʌl/
To officially declare something invalid.
The court annuls the agreement after finding that consent was invalid.

Etymology
The pieces convey bringing something to nothing. In legal use, this means making an act or agreement count for nothing by declaring it invalid.
In context
annul a marriage in New York
More examples
- They petitioned to annul the marriage.
- The disputed election result was annulled.
- The panel is considering annulling the earlier decision.
Forms
annul · annuls · annulled · annulling
annulment noun — An official declaration that something is invalid.