cluster

noun
clus·​ter | \ ˈklə-stər How to pronounce cluster (audio) \

Definition of cluster

 (Entry 1 of 2)

: a number of similar things that occur together: such as
a : two or more consecutive consonants or vowels in a segment of speech
b : a group of buildings and especially houses built close together on a sizable tract in order to preserve open spaces larger than the individual yard for common recreation
c : an aggregation of stars or galaxies that appear close together in the sky and are gravitationally associated the Perseus cluster of galaxies
d : a larger than expected number of cases of disease (such as leukemia) occurring in a particular locality, group of people, or period of time
e : a number of computers networked together in order to function as a single computing system Consisting of groups of inexpensive machines cobbled together, clusters in many ways have supplanted traditional supercomputers.— Elizabeth K. Wilson

cluster

verb
clustered; clustering\ ˈklə-​st(ə-​)riŋ How to pronounce clustering (audio) \

Definition of cluster (Entry 2 of 2)

transitive verb

1 : to collect into a cluster cluster the tents together
2 : to furnish with clusters the bridge was clustered with men and officers— Herman Wouk

intransitive verb

: to grow, assemble, or occur in a cluster they clustered around the fire

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Other Words from cluster

Noun

clustery \ ˈklə-​st(ə-​)rē How to pronounce clustery (audio) \ adjective

Examples of cluster in a Sentence

Noun

a cluster of cottages along the shore A small cluster of people had gathered at the scene of the accident.

Verb

The children clustered around the storyteller. the mice clustered together into a small burrow
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Recent Examples on the Web: Noun

With its cluster of boxy, rundown warehouses a mile south of CityPlace, this industrial pocket hardly seems like the city’s newest entertainment hot spot. Phillip Valys, sun-sentinel.com, "Warehouse District: How West Palm Beach’s newest nightlife village found suds, spirits and ‘soul’," 6 June 2019 Last month, a cluster of massive great white sharks – some of which researchers have been tracking for more than a decade – gathered about 20 miles off the coast of the Carolinas. CBS News, "Teen has her leg amputated after shark attack; dad said he "punched the shark in the face 5 times"," 4 June 2019 For instance, clusters of tiny, itchy bumps or pimples around hair follicles might indicate a condition known as folliculitis. Korin Miller, SELF, "9 Questions That Will Help You Decode That Skin Rash," 22 Mar. 2019 Radio ownership consolidation had surged after the Telecommunications Act of 1996, and WHJY, WSNE and WHJJ upgraded to their slicker new headquarters, joining oldies station, and fourth cluster mate, WWBB. Billboard, "Eerie Waves: Memories of an Abandoned Radio Home, From Dido to Whitesnake's David Coverdale (& the Incredible Hulk)," 6 July 2018 Outside of a few dense clusters in uptown, SouthPark and Ballantyne, few buildings rise above five or six stories in Charlotte, and much of the city's nearly 300 square miles is occupied by single-family houses. Ely Portillo, charlotteobserver, "New, 20-story tower coming outside uptown Charlotte, despite neighborhood objections," 18 June 2018 Each shot captures distinct clusters of desert rose petals, shadows cast by wafer-thin overhangs, and wedges of azure sky. Julie Lasky, ELLE Decor, "ED First Look: The National Museum of Qatar," 26 Mar. 2019 That means that their energy states tend to break up from a continuous set (electrons have all energies within some range), to one with clusters. Chris Lee, Ars Technica, "Fractal structure produces fractal electrons with fractal energies," 2 Dec. 2018 Her lower waterline was accented with eye-enlarging white liner, and her bottom lashes were enhanced with individual clusters of false lashes. Marci Robin, Allure, "Kristen Stewart Chopped Off Her Hair and Bleached It Blonde Again," 16 Sep. 2018

Recent Examples on the Web: Verb

Homeless encampments, clustered in various spots throughout the park, have created another challenge, contributing to a garbage problem and discouraging some people from using the trail system. Sal Pizarro, The Mercury News, "New leadership may spur more growth for Guadalupe River Park," 4 June 2019 There are almost no other buttons or knobs to be found, aside from a few clustered in between the central air vents that look to control things like the defroster. Daniel Golson, Car and Driver, "The Volkswagen Golf Mark 8 Is Getting a Radical Interior Redesign," 15 May 2019 The compromises made to calm the divisions between places is exacerbating the divisions between the parties, as Republicans dominate rural areas, while Democrats cluster in urban centers. Ezra Klein, Vox, "The rigging of American politics," 16 Oct. 2018 From 2009, just before the draft: About a dozen of the top picks in tonight’s draft are all staying at the same Westin hotel in midtown New York, so a number of basketball fans have clustered outside the lobby for autographs. Scott Fowler, charlotteobserver, "In 2009, Stephen Curry had NBA draft destination in mind, and it wasn't Golden State," 18 June 2018 And our society is getting more clustered in metropolitan areas. John Carlisle, Detroit Free Press, "John Carlisle: Many are answering the call of the wild in the U.P.," 18 Aug. 2014 In Hungary, there were four families with multiple members buried in the cemetery and clustered together; Italy had three families. John Timmer, Ars Technica, "Using Medieval DNA to track the barbarian spread into Italy," 14 Sep. 2018 The Delos security team looking for the hosts and finds them on the park's GPS, clustered together. Kayleigh Roberts, Marie Claire, "The 8 Biggest Questions After 'Westworld' Season 2, Episode 1," 23 Apr. 2018 There are several ways to look at segregation: by isolation, defined as the degree to which ethnic groups are clustered together, or by dissimilarity, defined as how evenly two groups are spread across an area. Kendra Pierre-louis, New York Times, "Dr. King Said Segregation Harms Us All. Environmental Research Shows He Was Right.," 3 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cluster.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cluster

Noun

before the 12th century, in the meaning defined above

Verb

14th century, in the meaning defined at transitive sense 1

History and Etymology for cluster

Noun and Verb

Middle English, from Old English clyster; akin to Old English clott clot

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Statistics for cluster

Last Updated

12 Jun 2019

Look-up Popularity

Time Traveler for cluster

The first known use of cluster was before the 12th century

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More Definitions for cluster

cluster

noun

English Language Learners Definition of cluster

 (Entry 1 of 2)

: a group of things or people that are close together

cluster

verb

English Language Learners Definition of cluster (Entry 2 of 2)

: to come together to form a group

cluster

noun
clus·​ter | \ ˈklə-stər How to pronounce cluster (audio) \

Kids Definition of cluster

 (Entry 1 of 2)

: a number of similar things growing or grouped closely together : bunch a cluster of houses a flower cluster

cluster

verb
clustered; clustering

Kids Definition of cluster (Entry 2 of 2)

: to grow, collect, or assemble in a bunch

cluster

noun
clus·​ter | \ ˈkləs-tər How to pronounce cluster (audio) \

Medical Definition of cluster

: a larger than expected number of cases of disease (as leukemia) occurring in a particular locality, group of people, or period of time

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Comments on cluster

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