An experiment carried out to test a new idea or concept before full-scale introduction; a pilot study.

An arch less than a semicircle.

plural of scheme arch

Synonym of Horner's method

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.

Used other than figuratively or idiomatically: see grand, scheme. / (idiomatic) The totality of the situation approached objectively; the big picture.

(chiefly Bangladesh, India, Pakistan) A timetabled academic curriculum.

Alternative form of grand scheme