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.
The characteristic of being a rivalrous good, such that it can be consumed or used by only one person at a time.
An ongoing relationship between (usually two) rivals who compete for superiority.
Any competition between two or more things or factors.