gathering
noun
1 she rose to address the gathering:
assembly, meeting, meet, convention, rally, turnout, congress, convocation, conclave, council, synod, symposium, forum, muster, tweetup;
assemblage, collection, company, congregation, audience, crowd, throng, mass, multitude, group, party, band, knot, flock, mob, horde, pack;
informal get-together;
formal concourse;
historical conventicle.