v.免罪，免责,
Merriam-Webster Online Dictionary
exonerate (verb)transitive verb
1.
to relieve of a responsibility, obligation, or hardship
2.
to clear from accusation or blame exculpate
Merriam-Webster Online Thesaurus
exonerate (verb)to free from a charge of wrongdoing
SYNONYMS:
absolve, acquit, clear, exonerate, vindicateRELATED WORDS:
atone (for), expiate; discharge, liberate, redeem, release, unburden; condone, excuse, whitewash; forgive, pardon, remit; avenge, redress, revengeNEAR ANTONYMS:
accuse, arraign, charge, impeach, indict; convict