The Collaborative International Dictionary of English v.0.48:

Meetinghouse \Meet"ing*house`\, n.
   A house used as a place of worship; a church; -- in England,
   applied only to a house so used by Dissenters.
   [1913 Webster]

WordNet (r) 3.0 (2006):

meetinghouse
    n 1: a building for religious assembly (especially
         Nonconformists, e.g., Quakers) [syn: conventicle,
         meetinghouse]

Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "meetinghouse":
   amphitheater, arena, assembly hall, auditorium, basilica, bethel,
   cathedral, cathedral church, chapel, church, church house,
   concert hall, conventicle, convention hall, dance hall, duomo,
   exhibition hall, gallery, hall, house of God, house of prayer,
   house of worship, kirk, lecture hall, minor basilica, mission,
   music hall, opera house, patriarchal basilica, place of worship,
   stadium, theater