Rules that exist in many languages that force some parts of a sentence to be used or inflected differently depending on certain attributes of other parts.
A legally binding contract enforceable in a court of law.
An understanding between entities to follow a specific course of conduct.
A state whereby several parties share a view or opinion; the state of not contradicting one another.
Deathmatch, sometimes specifically one in which every player is pitted against all the others.
Chaos; a chaotic situation lacking rules or control.
Open to anyone and with no or few rules.