A divorce is different from annulment. An annulment is a court order wherein it is judicially determined the marriage was not validly entered into in the first place.
Divorce is also different from legal separation. In legal separation, the property and support rights of the husband and wife are decided, but they remain legally married. If you want to remarry, you must get a divorce – a legal separation will not allow you to remarry.
Divorce, sometimes called dissolution, is the legal process by which a valid marriage is ended and the judge apportions the separate from community property of the parties, orders spousal support if appropriate, makes child custody orders, and orders child support to be paid by one or both parents.