Definition of "Ground" :

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

noun: (art) the surface (as a wall or canvas) prepared to take the paint for a painting

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

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

noun: the part of a scene (or picture) that lies behind objects in the foreground

"He posed her against a background of rolling hills."

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

"They gained ground step by step."

noun: a rational motive for a belief or action

"The grounds for their declaration."

noun: the solid part of the earth's surface

"He dropped the logs on the ground."

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

noun: a relation that provides the foundation for something

noun: the loose soft material that makes up a large part of the land surface

verb: use as a basis for; found on

verb: instruct someone in the fundamentals of a subject

verb: connect to a ground

"Ground the electrical connections for safety reasons."

verb: fix firmly and stably

verb: cover with a primer; apply a primer to

verb: hit onto the ground

verb: hit a groundball

"He grounded to the second baseman."

verb: throw to the ground in order to stop play and avoid being tackled behind the line of scrimmage

verb: place or put on the ground

verb: confine or restrict to the ground

"After the accident, they grounded the plane and the pilot."

verb: hit or reach the ground

verb: bring to the ground

"The storm grounded the ship."