noun

• The action of reverting something.
• The action of returning to a former condition or practice.
• The fact of being turned the reverse way.
• The action of turning something the reverse way.
• (property law) The return of an estate to the donor or grantor after expiry of the grant.
• (property law) An estate which has been returned in this manner.
• (property law) The right of succeeding to an estate, or to another possession.
• The right of succeeding to an office after the death or retirement of the holder.
• (genetics) The return of a genetic characteristic after a period of suppression.
• A sum payable on a person's death.
• (Islam, usually proscribed) The act of conversion to Islam, due to the belief that all people are born Muslim.