Ground rules are the basic rules for doing something (Cambridge Dictionary). A negotiation goes more smoothly if ground rules are adopted. Then if something goes awry at a later time, you can point out the ground rule that has been violated. Procurement professional should seek to minimise conflict over process through agreeing 'ground rules' and approach as far as possible with the other party in advance of any negotiation meetings.

There should be two sets of ground rules: 1) ground rules for the negotiations between the two parties and 2) ground rules for the negotiating team itself. This article is about the negotiating team ground rules.

The rule of law is the condition in which all members of society, including its political leaders, accept the authority of the law.

Ground zero describes the point on the Earth's surface closest to a nuclear detonation. In the case of an explosion above the ground, ground zero refers to the point on the ground directly below the nuclear detonation.

The Ground Beam is the beam which is provided usually at the foundation level to support building walls, joists, etc.