1. Growing close together but not in dense mats
   "The clustered berries hung from the bush"
    
2. Clustered together but not coherent
   "The clustered houses seemed randomly placed on the hillside";
   - agglomerate, agglomerated, agglomerative

1. Come together as in a cluster or flock
   "The poets cluster in this town every summer";
   - constellate, flock, clump
    
2. Gather or cause to gather into a cluster
   "She clustered her fingers into a fist";
   - bunch, bundle, clump

See also: collective, gregarious

Type of: assemble, foregather [formal], forgather, form, gather, meet

Encyclopedia: Cluster, star