verb (v)

• lose one's emotional or mental composure(verb.emotion)

  Synonym:
  go to pieces
  

  source: wordnet30
• go to pieces(verb.contact)

  Synonym:
  break, bust, wear, wear out
  

  source: wordnet30
• break or fall apart into fragments(verb.change)

  Synonym:
  crumble
  

  source: wordnet30
• become separated into pieces or fragments(verb.change)

  Synonym:
  break, come apart, separate, split up
  

  source: wordnet30