precedent
- An earlier event or action that is regarded as an example or guide to be considered in subsequent similar circumstances. nounThe court's decision set a precedent for future cases of a similar nature.There is no precedent for such an unusual request in our company's history.
- A legal decision or form of proceeding serving as an authoritative rule or pattern in future similar or analogous cases. nounThe judge cited a precedent from a previous ruling to justify his decision.Lawyers often look for precedents to support their arguments in court.