Definition: a grouping of a number of similar things; "a bunch of trees"; "a cluster of admirers"
Definition: a compact mass; "a ball of mud caught him on the shoulder"
Definition: A cluster or lump; an unshaped piece or mass.
Definition: make or move along with a sound as of a horse's hooves striking the ground
Definition: come together as in a cluster or flock; "The poets constellate in this town every summer"
Definition: gather or cause to gather into a cluster; "She bunched her fingers into a fist"
Definition: To form clusters or lumps.