A person or thing that exonerates; something that clears someone of blame or proves their innocence.
From Latin 'exonerare' + '-ator' (agent noun suffix), this noun names either a person who exonerates or evidence/information that accomplishes exoneration.
A witness, a piece of evidence, or even a lawyer can be an 'exonerator'—anyone or anything that lifts the burden of guilt. The Innocence Project is perhaps the greatest exonerator in modern justice, having saved hundreds of lives.
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