a rational motive for a belief or action

a position to be won or defended in battle (or as if in battle)

a relation that provides the foundation for something

the first or preliminary coat of paint or size applied to a surface

a surface that is prepared for an artist to put paint on

a connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage)

a relatively homogeneous percept extending back of the figure on which attention is focused

material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)

to set or position an object on a surface

to restrict or prohibit the operation of a pilot or aircraft from taking flight

to establish a solid foundation or support for a concept

to establish a physical connection between an electrical conductor or device and the Earth or a large conducting body

to cover a metal plate, typically copper, with a thin layer of protective coating

to hit a baseball in such a way that it rolls along the ground

to intentionally throw or drop the football to the ground during a play in order to prevent being tackled for a loss of yards

(of a vessel) to come into contact with the seabed, usually in shallow water

to cause a vessel to run aground intentionally or unintentionally