- a number of things of the same kind, growing or held together; a bunch: a cluster of grapes.
- a group of things or persons close together: There was a cluster of tourists at the gate.
- U.S. Army. a small metal design placed on a ribbon representing an awarded medal to indicate that the same medal has been awarded again: oak-leaf cluster.
- Phonetics. a succession of two or more contiguous consonants in an utterance, as the str- cluster of strap.
- Astronomy. a group of neighboring stars, held together by mutual gravitation, that have essentially the same age and composition and thus supposedly a common origin.Compare globular cluster, open cluster, stellar association.
- to gather into a cluster or clusters.
- to furnish or cover with clusters.
- to form a cluster or clusters: The people clustered around to watch.
Origin of cluster
before 900; Middle English; Old English cluster, clyster bunch; cognate with Low German kluster
Synonyms for cluster
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a number of things growing, fastened, or occurring close together
- a number of persons or things grouped together
- US military a metal insignia worn on a medal ribbon to indicate a second award or a higher class of a decoration or order
- a group of bombs dropped in one stick, esp fragmentation and incendiary bombs
- the basic unit of mines used in laying a minefield
- astronomy an aggregation of stars or galaxies moving together through space
- a group of two or more consecutive vowels or consonants
- statistics a naturally occurring subgroup of a population used in stratified sampling
- a chemical compound or molecule containing groups of metal atoms joined by metal-to-metal bonds
- the group of linked metal atoms present
- to gather or be gathered in clusters
Word Origin for cluster
Old English clyster; related to Low German Kluster; see clod, clot
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Old English clyster "cluster," probably from the same root as clot (n.). Of stars, from 1727. Cluster-bomb attested from 1967.
late 14c. (transitive), from cluster (n.). Intransitive sense from 1540s. Related: Clustered; clustering.
Online Etymology Dictionary, © 2010 Douglas Harper