Definitions
1.verbTo form a cluster or group."The children clustered around the puppy."
2.verbTo collect into clusters.
3.verbTo cover with clusters.
4.nounThe action of the verb to cluster.
5.nounA grouping of a number of similar things.
6.noun(demographics) The grouping of a population based on ethnicity, economics or religion.
7.nounThe undesirable contiguous grouping of elements in a hash table.
8.noun(writing) A prewriting technique consisting of writing ideas down on a sheet of paper around a central idea within a circle, with the related ideas radially joined to the circle using rays.
9.adjectiveForming a cluster.