A woman who is one's aunt in two ways, e.g. being a sister of one parent and the wife of a sibling of the other.

(poker) A drawing hand in which there are two gutshot possibilities, i.e., two opportunities at making a straight, either of which needs only one card.

plural of double gutshot

(government, politics, Australia) A procedure in which the Government requests the Governor-General to dissolve both houses of Parliament and call a full election, typically to resolve a deadlock between the House of Representatives and the Senate.

(UK politics) The act of holding two or more political offices simultaneously.

plural of double salt

plural of test double

(programming) An object or procedure that looks and behaves like its release-intended counterpart, but is actually a simplified version to reduce complexity and facilitate testing.

plural of double break

plural of double action