acquittal, amnesty, clearance, deliverance, discharge, dismissal, dismissal of an accusation, exculpation, exoneration, forgiveness, forgiveness of sins, grace, liberation, pardon, purgation, release, release from punishment, remission, reprieve, vindication
acquittal, amnesty, clemency, compurgation, condonation, discharge (liberation), discharge (release from obligation), dispensation (exception), exoneration, grace, immunity, impunity, liberation, pardon, release, remission, waiver
Burton's Legal Thesaurus. William C. Burton. 2006
the absolving or formal setting free from guilt, sentence or obligation; the remission of sin or penance.
Collins dictionary of law. W. J. Stewart. 2001.