Definition of 'warrant'

Noun

1. a writ from a court commanding police to perform specified acts
2. a type of security issued by a corporation (usually together with a bond or preferred stock) that gives the holder the right to purchase a certain amount of common stock at a stated price; "as a sweetener they offered warrants along with the fixed-income securities"
      Synonyms: stock warrant stock-purchase warrant
3. formal and explicit approval; "a Democrat usually gets the union's endorsement"
      Synonyms: sanction countenance endorsement indorsement imprimatur
4. a written assurance that some product or service will be provided or will meet certain specifications
      Synonyms: guarantee warrantee warranty

Verb

1. show to be reasonable or provide adequate ground for; "The emergency does not warrant all of us buying guns"; "The end justifies the means"
      Synonyms: justify
2. stand behind and guarantee the quality, accuracy, or condition of; "The dealer warrants all the cars he sells"; "I warrant this information"
      Synonyms: guarantee

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