exculpation (n.)

• absolution
• acquittal
• acquittance
• amnesty
• clearance
• clearing
• discharge
• dismissal
• excuse
• exemption
• exoneration
• explanation
• forgiveness
• grace
• immunity
• indemnity
• justification
• pardon
• purgation
• purging
• quietus
• quittance
• rationalization
• redemption
• rehabilitation
• reinstatement
• release
• remission
• reprieve
• restoration
• shrift
• vindication