cluster
n : a thick grouping of similar things; "a bunch of trees"; "a
cluster of admirers" [syn: {bunch}, {clump}]
v 1: come together as in a cluster or flock; "The poets
constellate in this town every summer" [syn: {constellate},
{flock}, {clump}]
2: gather or cause to gather into a cluster; "She bunched her
fingers into a fist"; "The students bunched up at the
registration desk" [syn: {bunch}, {bunch up}, {bundle}, {clump}]