The floor of a building closest to ground level; what is also known by some American English speakers as the first floor. (US) / (informal) The initial stage of a project.

(military, slang) A military soldier whose primary role is infantry or the use of ground-based materiel.

A thick copper bar required in telecommunication room installations to provide a central ground-point for equipment.

plural of ground proximity warning system

A sheet of waterproof material that is spread on the ground, often beneath a tent, and upon which a person may sit or sleep.

(Scotland) A person who looks after a large Scottish estate for a Lord, preventing illegal hunting and fishing, and liaises with tenant farmers.

(transitive, idiomatic) To mismanage to the point of ruin. / (transitive, idiomatic) To wear out, especially through excessive use. / (transitive, idiomatic) To discuss ad nauseam.

(aeronautics) Any aerodynamic effects occurring due to a vehicle's body or appendages moving in close proximity to the ground.

Any of several standard sized joints, made from ground glass, used to connect laboratory glassware without leaks.

Glass having a rough, flat surface produced by abrasion or etching.