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mole - definition and synonyms

 
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noun [countable]     mole pronunciation in American English
/moʊl/
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singularmole
pluralmoles
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  1. 2
    a small animal with dark fur that digs underground and cannot see well
  2. 3
    informal someone who joins or works for an organization in order to give secret information about it to other people, especially to its enemies

    They suspected there was a mole within party headquarters.

  3. 4
    a strong wall built from the land into the sea to protect the land from the waves
 
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