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."