Definition of belly noun from the Oxford Advanced American Dictionary

     

    belly

     noun
    noun
    NAmE//ˈbɛli//
     
    (pl. bellies)
     
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  1. 1 the part of the body below the chest synonym gut synonym stomach They crawled along on their bellies. see also beer belly,
  2. 2 (literary) the round or curved part of an object the belly of a ship
  3. 3 -bellied (in adjectives) having the type of belly mentioned flat-bellied fat-bellied
  4. Idioms
    go belly up(informal)
     
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    to fail completely Last year the business went belly up after one of the partners resigned.
See the Oxford Advanced Learner's Dictionary entry: belly