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English definition of “warrant”

warrant

verb [T]  /ˈwɑr·ənt, ˈwɔr-/ fml us  

warrant verb [T] (MAKE NECESSARY)

to make a particular action necessary or correct, or to be a reason to do something: His injury was serious enough to warrant an operation. I can see circumstances in which these types of investigations would be warranted.

warrant

noun [C]  /ˈwɑr·ənt, ˈwɔr-/ us  

warrant noun [C] (DOCUMENT)

an official document approved by an authority, esp. a judge, which gives the police permission to do certain things: a search warrant an arrest warrant
(Definition of warrant from the Cambridge Academic Content Dictionary © Cambridge University Press)
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