1.A combination of things connected and adjusted by design; a system. "The appearance and outward scheme of things." "Such a scheme of things as shall at once take in time and eternity." "Arguments... sufficient to support and demonstrate a whole scheme of moral philosophy." "The Revolution came and changed his whole scheme of life."
2.A plan or theory something to be done; a design; a project; as, to form a scheme. "The stoical scheme of supplying our wants by lopping off our desires, is like cutting off our feet when we want shoes."
3.Any lineal or mathematical diagram; an outline. "To draw an exact scheme of Constantinople, or a map of France."
4.(Astrol.) A representation of the aspects of the celestial bodies for any moment or at a given event. "A blue silk case, from which was drawn a scheme of nativity."