Definitions:
the solid surface of the earth

an area of land or sea used for a specified purpose

an area of knowledge or subject of discussion or thought

factors forming a basis for action or the justification for a belief

a prepared surface to which paint is applied.

solid particles, especially of coffee, which form a residue; sediment

electrical connection to the earth.

prohibit or prevent (a pilot or an aircraft) from flying

(with reference to a ship) run or go aground

give (something abstract) a firm theoretical or practical basis

place (something) on the ground or touch the ground with (something)

connect (an electrical device) with the ground.

(of a batter) hit a pitched ball so that it bounces on the ground

reduced to fine particles by crushing or mincing