English to English

noun (n)

• a group of people who adhere to a common faith and habitually attend a given church(noun.group)

  Synonym:
  faithful, fold
  

  source: wordnet30
• an assemblage of people or animals or things collected together(noun.group)

  Example:
  A congregation of children pleaded for his autograph.
  A great congregation of birds flew over.
  

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

  Synonym:
  congregating
  

  source: wordnet30
• The act of congregating, or bringing together, or of collecting into one aggregate or mass.(noun)

  source: webster1913