set a precedent

Idioms  

1. Establish a usage, tradition, or standard to be followed in the future. For example, He set a precedent by having the chaplain lead the academic procession. The word precedent here signifies a previous instance or legal decision upon which future instances are based, a usage dating from the early 1400s. In British and American law it more specifically refers to a legal decision that may be used as a standard in subsequent cases.

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Example Sentences

The MP is seeking damages but also wants to set a precedent for companies to be liable for the design of AI systems.

From BBC • Jun. 3, 2026

She said China's objective "is to set a precedent and to remind entrepreneurs that they should not transfer critical and sensitive technical know-how overseas without government approval".

From Barron's • Apr. 28, 2026

The former first couple hope their appearance will set a precedent for Trump and other key names in the files to appear before Congress.

From Los Angeles Times • Feb. 26, 2026

Mizuho analyst Dan Dolev also wondered whether the move would set a precedent for other technology companies.

From MarketWatch • Feb. 26, 2026

Mrs. Gascoyne said they didn’t want to treat me differently from everyone else in the school because then everyone would want to be treated differently and it would set a precedent.

From "The Curious Incident of the Dog in the Night-Time" by Mark Haddon