English to English

noun (n)

• the forceful expulsion of something from inside(noun.act)

  Example:
  The belching of smoke from factory chimneys.
  

  source: wordnet30
• a reflex that expels gas noisily from the stomach through the mouth(noun.act)

  Synonym:
  belch, burp, burping, eructation
  

  source: wordnet30