definition of annul
When a celebrity wakes up in Las Vegas with a mysterious wedding ring on her finger, the first thing sheâll probably want to do is annul the marriage. That will declare it invalid and officially cancel the whole deal. Annul, which means âto cancelâ or âto invalidate,â is usually used in the context of politics or marriage. New government officials often want to annul laws and policies of the previous post-holder, effectively reversing their work. When you annul a marriage, you are officially declaring it invalid, as if it never happened.