A cant in architecture is an angled (oblique-angled) line or surface that cuts off a corner.Something with a cant is canted.
Canted façades are a typical of, but not exclusive to, Baroque architecture. The angle breaking the façade is less than a right angle, thus enabling a canted façade to be viewed as, and remain, one composition. Bay windows frequently have canted sides.
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A bay window is a window space projecting outward from the main walls of a building and forming a bay in a room. A bow window is a form of bay with a curve rather than angular facets; an oriel window is a bay window that does not touch the ground.
A window may be all three: projecting outward from the main fascia of a wall, curved in shape, and not reaching the ground. A bay window may be supported from the ground by a foundation, or in space by corbels, brackets, or cantilever.
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