Available Definitions:
1) n. - The act of congregating, or bringing together, or of collecting into one aggregate or mass.
2) n. - A collection or mass of separate things.
3) n. - An assembly of persons; a gathering; esp. an assembly of persons met for the worship of God, and for religious instruction; a body of people who habitually so meet.
4) n. - The whole body of the Jewish people; -- called also Congregation of the Lord.
5) n. - A body of cardinals or other ecclesiastics to whom as intrusted some department of the church business; as, the Congregation of the Propaganda, which has charge of the missions of the Roman Catholic Church.
6) n. - A company of religious persons forming a subdivision of a monastic order.
7) n. - The assemblage of Masters and Doctors at Oxford or Cambrige University, mainly for the granting of degrees.
8) n. - the name assumed by the Protestant party under John Knox. The leaders called themselves (1557) Lords of the Congregation.