precedent
/ˈprɛsədənt/
noun
plural
precedents
plural
precedents
Britannica Dictionary definition of PRECEDENT
somewhat formal
1
:
a similar action or event that happened at an earlier time
[count]
[noncount]
2
:
something done or said that can be used as an example or rule to be followed in the future
[count]
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The judge's ruling was based on a precedent established by an earlier decision.
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He says that the government will set/establish a dangerous precedent if it refuses to allow the protesters to hold a rally.
[noncount]
3
[noncount]
:
the usual or traditional way of doing something