THESAURUS
congregate
assemble, bunch, bunch up, clot, cluster, collect, come together, congress, converge, copulate, couple, crowd, date, flock together, flow together, forgather, fuse, gang around, gang up, gather, gather around, herd together, hive, horde, huddle, league, link, mass, meet, merge, mill, muster, raise, rally, rally around, rendezvous, seethe, stream, surge, swarm, teem, throng, unite
ROGET THESAURUS
congregate
Assemblage
VB
assemble, collect, muster, meet, unite, join, rejoin, cluster, flock, swarm, surge, stream, herd, crowd, throng, associate,
congregate, conglomerate, concentrate, precipitate, center round, rendezvous, resort, come together, flock get together, pig together, forgather, huddle, reassemble, assemble, muster, bring together, get together, put together, draw together, scrape together, lump together, collect, collocate, colligate, get, whip in, gather, hold a meeting, convene, convoke, convocate, rake up, dredge, heap, mass, pile, pack, put up, truss, cram, acervate, agglomerate, aggregate, compile, group, aggroup, concentrate, unite, collect into a focus, bring into a focus, amass, accumulate, collect in a dragnet, heap Ossa upon Pelion.