Void legally is a legal term that refers to the process of annulling a contract or agreement. Annulment is the process of making a contract or agreement null and void, meaning it is no longer legally binding. Annulment can be done for a variety of reasons, such as if one of the parties was not of legal age or if the agreement was made under duress. Annulment is different from a divorce in that it does not require a court order and is usually much simpler and faster.