assemble, bunch, bunch up, clot, cluster, collect, come together, congregate, congress, converge, copulate, couple, crowd, date, flock together, flow together, 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, throng, unite