A legally binding contract enforceable in a court of law.
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.
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.
An amendment or annotation to an insurance contract or other official document (such as a driving licence).
The act or quality of endorsing
Sponsorship, in means of money, by a company, business or enterprise.
An instructor's signed acknowledgement of time practising specific flying skills.
Permission to carry out a specific skill or application in a field in which the practitioner already has a general licence.
Support from an important, renowned figure of a media (celebrity, politics, sports, etc.), to get back up.