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English definition of “annul”

annul

verb [T]    /əˈnʌl/ (-ll-) law
to announce officially a law, marriage, or other contract as no longer existing: The contract was finally annulled. annulment    /əˈnʌl·mənt/ noun [C] law You will need a court hearing to get an annulment.
(Definition of annul verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
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