To free someone from all blames :

Step-by-step solution

Kindly refer to the video to get to know the context the word is generally used in. Exonerate (Verb) : 1. (of an official body) absolve (someone) from blame for a fault or wrongdoing. Ex. "an inquiry exonerated those involved" Ex. It's another matter that in the equally sensational TANSI land-deal case, the Supreme Court finally exonerated Jayalalithaa of any wrong-doing. Synonyms : absolve, clear, acquit, declare innocent, find innocent, pronounce not guilty, discharge. 2. release someone from (a duty or oblig