crocodile - definition and synonyms

noun 

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/ˈkrɒkədaɪl/
singularcrocodile
pluralcrocodiles
  1. 1
    [countable] a large reptile that lives in water in hot countries. It has a long body and a long mouth with many sharp teeth.
    1. a.
      [uncountable] the skin of a crocodile, used especially for making shoes and bags
  2. 2
    [countable] British a group of children walking in pairs in a line