Precedent / precedents / Precedence
Different meaningsPrecedents are earlier examples; precedence is priority. You set a precedent, but one consideration takes precedence over another.
Precedent / precedents
Use when
You mean an earlier example, decision or practice that may guide a later one.
Example
“The earlier exemption may set a precedent for future cases.”
Precedence
Use when
You mean priority or a higher place in an order of importance.
Example
“Safety takes precedence over speed.”
Quick check
set a precedence, takes precedent
Usage note