The meaning of CLUSTER is a number of similar things that occur together. How to use cluster in a sentence.

CLUSTER definition: 1. a group of similar things that are close together, sometimes surrounding something: 2. a group…. Learn more.

CLUSTER definition: a number of things of the same kind, growing or held together; a bunch. See examples of cluster used in a sentence.

A star cluster is a group of stars, predominantly within a galaxy, [citation needed] held together by self-gravitation. Two main types of star clusters can be distinguished: globular clusters, tight …

A cluster of people or things is a small group of them close together. ...clusters of men in formal clothes.

A group of the same or similar elements gathered or occurring closely together; a bunch: "She held out her hand, a small tight cluster of fingers" (Anne Tyler).

Definition of cluster noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.