verb (v)

• come to pass(verb.change)

  Example:
  Nothing occurred that seemed important.
  

  Synonym:
  come about, fall out, go on, hap, happen, pass, pass off, take place
  

  source: wordnet30
• come to one's mind; suggest itself(verb.cognition)

  Example:
  It occurred to me that we should hire another secretary.
  

  Synonym:
  come
  

  source: wordnet30
• to be found to exist(verb.stative)

  Example:
  Sexism occurs in many workplaces.
  Precious stones occur in a large area in Brazil.
  

  source: wordnet30
• To meet; to clash.(verb)

  source: webster1913