Void
Something is void when it is automatically invalid under the law. For example, an order might be void if the Court entering it lacked jurisdiction over the parties. A marriage is void if it is one prohibited by law (such as first cousins under the age of 55 marrying). The difference between void and voidable is that something that is void is automatically invalid and cannot be enforced; something that is voidable remains enforceable until one party goes to court to invalidate it.