conventicle vs meetinghouse

conventicle and meetinghouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
conventicle	Yes	No	No	No
meetinghouse	Yes	No	No	No

As nouns, conventicle and meetinghouse are synonyms defined as:

conventicle and meetinghouse: a building for religious assembly (especially Nonconformists, e.g., Quakers)

conventicle (noun)	meetinghouse (noun)
a building for religious assembly (especially Nonconformists, e.g., Quakers)	a building for religious assembly (especially Nonconformists, e.g., Quakers)
a secret unauthorized meeting for religious worship