THESAURUS
decontaminate
absolve, acquit, amnesty, antisepticize, autoclave, boil, chlorinate, clear, delouse, destigmatize, discharge, disinfect, dismiss, dispense from, exculpate, excuse, exempt, exempt from, exonerate, forgive, free, fumigate, give absolution, grant amnesty to, grant immunity, grant remission, hygienize, justify, let go, let off, nonpros, pardon, pasteurize, purge, quash the charge, release, remit, sanitate, sanitize, set free, shrive, sterilize, vindicate, whitewash, withdraw the charge