(politics) A democratic parliamentary system of government, used by and modelled after the British parliament in Westminster.

(construction) A system of drains and moisture barriers used to regulate the hydrostatic pressure in the earth surrounding a below-grade structure.

(finance) The risk associated with an asset that is correlated with the risk of asset markets generally, often measured as its beta.

plural of embedded system

(logic) A set of axioms and a set of inference rules which are jointly used to deduce tautologies, thereby providing proofs of them.

plural of global positioning system

present participle of sysop

simple past tense and past participle of sysop

(automotive) Any of several restraining systems in a vehicle, such as an airbag, in addition to the seatbelts

The system of fraternities and sororities in North American colleges.