(aerospace) The total mass of the burnt fuel etc. ejected from a rocket to provide thrust.

Any mail or letters that are not welcome or solicited and typically sent in bulk; especially mail of a commercial nature such as advertising circulars and form letters.

a fact / (idiomatic) a more factual correction / (idiomatic) something completely true

(chiefly Britain) the marrow squash

An automatic machine that dispenses merchandise in return for money.

(historical) A US government agent fighting organized crime in the interwar years. / Any person working for the US government, especially in undercover work.

(computing theory) A Turing machine capable of simulating the behavior of any Turing machine.

(dated) An expression of surprise

(bingo) five

Alternative form of hatch, match, and dispatch