unban

1. (transitive) To lift a ban against.Examples: "De Klerk was not acting totally unilaterally and independently when he announced the decision to unban previously banned parties like the ANC […]"; "ChanServ can unban you from your channel when someone has banned you […]"; "Over three and a half decades, "Deep Throat" has been damned by religious groups, decried by feminists, defended by First Amendment advocates, derided by critics and debated by social scientists. It dragged for years through local and federal courts around the country in a welter of obscenity trials in which it was variously banned, unbanned and rebanned."