What does warrant mean?
Warrant is a formal word with two broad uses. As a noun, it usually means an official legal authorization, such as a search warrant or arrest warrant, but it can also mean the grounds or justification for an action. As a verb, warrant means that something is justified, deserves attention, or provides sufficient grounds for a conclusion: the findings warrant further study, or the situation warrants caution. The word is especially associated with law and formal decision-making, although its general uses are not limited to legal language. Its historical connection with pledges and assurances also survives in related forms such as warranty. Overall, warrant is useful when a situation requires more than a casual observation: it expresses the idea that a course of action is supported by a recognized reason, authority, or necessity.
An official authorization, especially a legal order permitting an arrest, search, or seizure; more generally, a justification or basis for an action.
"The authorities cannot enter the home without a warrant."
In legal contexts, a warrant is normally issued by a judge, magistrate, or other authorized official.
To justify or provide grounds for something, or to deserve attention, treatment, or investigation.
"The unusual pattern of activity warrants a closer look."
Common in formal and semi-formal prose; typical expressions include warrants attention, warrants investigation, and warrants caution.
The plural is used for multiple legal authorizations, as well as in the abstract sense of reasons or grounds for action.
"The court issued warrants for the search of three properties."
A warrant began as a pledge: its legal descendants still carry the old idea of an official authorization.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of warrant
The English word comes through Middle English from Anglo-French warant, a term associated with protecting or defending and with giving a pledge. It developed the sense of an authorization or official permission that remains central in modern legal usage. Its older association with assurance survives in related forms such as warranty and in the verb's sense of making something justified or guaranteed.
Related word forms
How warrant is actually used
Warrant is most common in formal and legal contexts. As a verb, it often appears in expressions such as warrants attention, warrants investigation, and warrants caution.
Easily confused with warrant
A warrant justifies or authorizes something, whereas a guarantee is a promise that something will happen or that a product will meet a stated standard.