Definition of conventicle in US English:

conventicle

noun

historical
  • A secret or unlawful religious meeting, typically of people with nonconformist views.

    • ‘Gerhard, a quiet dreamy boy, found himself attracted to the conventicles, but although he heard numerous gospel sermons, his mind remained confused and his heart untouched.’
    • ‘If it was a sin to preach at conventicles, he said, ‘I should sin still.’’
    • ‘The Orthodox among us were at least as imaginative as any of the rest, though, of course, always insisting upon strict obedience to Jewish law in our conventicles and retreats.’
    • ‘Despite the attempts to prevent unlawful conventicles, the Baptists, Quakers, and other radicals were not to be uprooted.’
    • ‘Gnostics read their revelations in private, or discuss them in small conventicles with those who are similarly enlightened.’
    assembly, meeting, meet, convention, rally, turnout, congress, convocation, conclave, council, synod, symposium, forum, muster, tweetup
    View synonyms

Origin

Late Middle English (in the general sense ‘assembly, meeting’, particularly a clandestine or illegal one): from Latin conventiculum ‘(place of) assembly’, diminutive of conventus ‘assembly, company’, from the verb convenire (see convene).

Pronunciation

conventicle

/kənˈvɛn(t)ək(ə)l//kənˈven(t)ək(ə)l/