noun

• 1Military
  (originally and chiefly British) divine service attended as a unit, either in church or on a parade ground, etc. (compulsory in the British Army until 1946).

• 2The attendance of the members of a society, etc., as a group at a church service.

• 3An assembly of fashionable churchgoers after Sunday morning service, especially to walk in a public park (now historical).