congregation

1. The act of congregating or collecting together. (countable, uncountable)
2. A gathering of faithful in a temple, church, synagogue, mosque or other place of worship, especially those present at a devotional service or who regularly attend such services, particularly in contrast to the leadership, choir or others. (countable, uncountable)
3. A Roman Congregation, a main department of the Vatican administration of the Catholic Church. (countable, uncountable)
4. A corporate body whose members gather for worship, or the members of such a body. (countable, uncountable)
5. Any large gathering of people. (countable, uncountable)
6. A flock of birds. (countable, uncountable)
7. A group of alligators or crocodiles. (countable, uncountable)

Plural congregations