noun (n)

• a large formal assembly(noun.group)

  Example:
  Political convention.
  

  source: wordnet30
• something regarded as a normative example(noun.cognition)

  Example:
  The convention of not naming the main character.
  

  Synonym:
  formula, normal, pattern, rule
  

  source: wordnet30
• (diplomacy) an international agreement(noun.communication)

  source: wordnet30
• orthodoxy as a consequence of being conventional(noun.attribute)

  Synonym:
  conventionalism, conventionality
  Antonym:
  unconventionality
  

  source: wordnet30
• the act of convening(noun.act)

  Synonym:
  convening
  

  source: wordnet30
• The act of coming together; the state of being together; union; coalition.(noun)

  source: webster1913