solid surface of the earth that we stand on

plural of grounding

plural of ground

Third-person singular simple present indicative form of ground

(law) Basis or justification for something. / The collective land areas that compose a larger area.

The sediment at the bottom of a liquid, or from which a liquid has been filtered.

Fundamental knowledge or background in a field or discipline. / The return to a fully conscious state after a psychedelic experience.

present participle of ground

(military) A large area of firm ground, formerly usually adjacent to fortifications and now usually a paved area at a military base, where soldiers present themselves for inspection ("parade") and practice marching and close-order drills.

(idiomatic, uncountable, usually with "the") A position of advantage or superiority in a conflict or competition. / Used other than figuratively or idiomatically: see high, ground.