American English

Definition of guideline noun from the Oxford Advanced American Dictionary

      

    guideline

     noun
    noun
    NAmE//ˈɡaɪdlaɪn//
     
     
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  1. 1 guidelines [plural] rules or instructions that are given by an official organization telling you how to do something, especially something difficult The government has issued guidelines for controlling infection.
  2. 2[countable] something that can be used to help you make a decision or form an opinion The figures are a useful guideline when buying a house.
See the Oxford Advanced Learner's Dictionary entry: guideline