immunity, unsusceptibility - the state of not being susceptible; "unsusceptibility to rust"

amnesty - a period during which offenders are exempt from punishment

diplomatic immunity - exemption from taxation or normal processes of law that is offered to diplomatic personnel in a foreign country

indemnity - legal exemption from liability for damages

impunity - exemption from punishment or loss

grandfather clause - an exemption based on circumstances existing prior to the adoption of some policy; used to enfranchise illiterate whites in US south after the Civil War

deduction, tax deduction, tax write-off - a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket

waiver, discharge, release - a formal written statement of relinquishment

fix - an exemption granted after influence (e.g., money) is brought to bear; "collusion resulted in tax fixes for gamblers"

official immunity - personal immunity accorded to a public official from liability to anyone injured by actions that are the consequence of exercing official authority

sovereign immunity - an exemption that precludes bringing a suit against the sovereign government without the government's consent; "the doctrine of sovereign immunity originated with the maxim that the king can do no wrong"

testimonial immunity, use immunity - an exemption that displaces the privilege against self-incrimination; neither compelled testimony or any fruits of it can be used against the witness who therefore can no longer fear self-incrimination