exonerationPronunciation: /ɪgzɒnəˈreɪʃ(ə)n, ɛg-/Definition of exoneration noun [mass noun] 1the action of officially absolving someone from blame; vindication:the defendants' eventual exoneration 2the release of someone from a duty or obligation. exoneration in other Oxford dictionaries Definition of exoneration in the US English dictionary