conventicle vs house of God

conventicle and house of God both are nouns.

Word	Noun	Adjective	Verb	Adverb
conventicle	Yes	No	No	No
house of God	Yes	No	No	No

As nouns, house of God is a hypernym of conventicle; that is, house of God is a word with a broader meaning than conventicle:

conventicle: a building for religious assembly (especially Nonconformists, e.g., Quakers)
house of God: any building where congregations gather for prayer

Other hypernyms of conventicle include house of prayer, house of worship, place of worship.

conventicle (noun)	house of God (noun)
a building for religious assembly (especially Nonconformists, e.g., Quakers)	any building where congregations gather for prayer
a secret unauthorized meeting for religious worship