n. - A number of things of the same kind growing together; a bunch.
n. - A number of similar things collected together or lying contiguous; a group; as, a cluster of islands.
n. - A number of individuals grouped together or collected in one place; a crowd; a mob.
v. i. - To grow in clusters or assemble in groups; to gather or unite in a cluster or clusters.
v. t. - To collect into a cluster or clusters; to gather into a bunch or close body.