acquisition, affair, aggregate, aggregation, association, band, body, bunch, caucus, clambake, collection, company, concentration, conclave, concourse, conference, congregation, congress, convention, convocation, crowd, crush, drove, flock, function, gain, get-together, group, heap, herd, horde, huddle, junction, knot, levy, mass, meet, meeting, muster, parley, party, pile, powwow, rally, roundup, social function, society, stock, stockpile, swarm, throng, turnout, union