noun

• (now rare) The act of fulfilling the duties (of a given role, obligation etc.).
• (law) A legal decision that someone is not guilty with which they have been charged, or the formal dismissal of a charge by some other legal process.
• Payment of a debt or other obligation; reparations, amends.
• (historical) The act of releasing someone from debt or other obligation; acquittance.
• (rare) Avoidance of danger; deliverance.