noun (n)

• a place where things merge or flow together (especially rivers)(noun.location)

  Example:
  Pittsburgh is located at the confluence of the Allegheny and Monongahela rivers.
  

  Synonym:
  meeting
  

  source: wordnet30
• a flowing together(noun.act)

  Synonym:
  conflux, merging
  

  source: wordnet30
• a coming together of people(noun.act)

  Synonym:
  concourse
  

  source: wordnet30
• The act of flowing together; the meeting or junction of two or more streams; the place of meeting.(noun)

  source: webster1913