Full of schemes or plans.

An illicit money-making investment scheme whereby early investors are paid primarily or wholly by later investors. Eventually all such schemes fail to the detriment of recent (later) investors.

A fraudulent scheme where earlier investors are paid with the money taken from new investors, giving the impression that the scheme is a viable investment.

(South Africa) A carpool; an arrangement whereby several people travel together in the same car.

plural of pyramid scheme

(metadata) The descriptive information for an arrangement or division of objects into groups based on characteristics which the objects have in common.

plural of Ponzi scheme

plural of lift scheme

plural of axiom scheme

(logic) A formula in the language of an axiomatic system, in which one or more schematic variables appear, which stand for any term or subformula of the system, which may or may not be required to satisfy certain conditions.