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agent

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noun [countable] agent pronunciation in British English /ˈeɪdʒ(ə)nt/
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singularagent
pluralagents
  1. 2
    someone who works for a countrys secret service and collects secret information about foreign governments
    a secret/undercover/intelligence/CIA agent
    Synonyms and related words
    1. a.
      an official of some US government departments, such as the FBI
      Agent Lehman spoke with the police about the case.
  2. 3
    a chemical or other substance that has a particular effect
    oxidizing agents
    1. a.
      formal something that causes change
      agent of: Soil erosion is a major agent of environmental change.
      Synonyms and related words

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