verb (v)

• start abruptly(verb.change)

  Synonym:
  break out
  

  source: wordnet30
• erupt or intensify suddenly(verb.change)

  Example:
  Unrest erupted in the country.
  

  Synonym:
  break open, burst out, flare, flare up, irrupt
  

  source: wordnet30
• start to burn or burst into flames(verb.weather)

  Synonym:
  catch fire, combust, conflagrate, ignite, take fire
  

  source: wordnet30
• break out(verb.change)

  Example:
  The tooth erupted and had to be extracted.
  

  Synonym:
  break through, come out, push through
  

  source: wordnet30
• become active and spew forth lava and rocks(verb.change)

  Example:
  Vesuvius erupts once in a while.
  

  Synonym:
  belch, extravasate
  

  source: wordnet30
• force out or release suddenly and often violently something pent up(verb.emotion)

  Example:
  Erupt in anger.
  

  Synonym:
  break, burst
  

  source: wordnet30
• appear on the skin(verb.change)

  Example:
  A rash erupted on her arms after she had touched the exotic plant.
  

  source: wordnet30
• become raw or open(verb.change)

  Synonym:
  break out, recrudesce
  

  source: wordnet30
• To cause to burst forth; to eject; as, to erupt lava.(verb)

  source: webster1913
• To eject something, esp. lava, water, etc., as a volcano or geyser.(verb)

  source: webster1913