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 And sure enough, in early April the virus exploded at the Multi-Service Center South homeless shelter, the city’s biggest, infecting 96 clients there to become the biggest cluster of homeless positives in the western United States. Kevin Fagan, SFChronicle.com, "Surprise: Homeless people not getting coronavirus in the disastrous waves experts had feared," 10 July 2020 More on the Corvette Wireless Apple CarPlay and Android Auto capabilities are now standard, and the digital gauge cluster offers a few new display options including a different visualization for the tachometer for track driving. Joey Capparella, Car and Driver, "More 2021 Chevy Corvette C8 Details Revealed, Including New Colors," 8 July 2020 Rockland County Health Commissioner Patricia Schnabel Ruppert said at a Wednesday press conference that health workers tried to talk to people who tested positive after attending the party in an effort to contain the coronavirus cluster. Autumn Schoolman, USA TODAY, "A group of partygoers ignored requests for help in coronavirus contact tracing. This New York county responded with subpoenas.," 4 July 2020 And in England there's a cluster in the city of Leicester. Zamira Rahim, CNN, "More than 500,000 people have been killed by Covid-19. A quarter of them are Americans," 29 June 2020 The cluster of coronavirus cases linked to Harper's has spread to the Grosse Pointes, where a college student returned home after visiting the college bar and went on to infect others at a house party and a bonfire. Kristen Jordan Shamus, Detroit Free Press, "Michigan health officials urge caution as state opens and coronavirus cases rise," 28 June 2020 Tensions flared Thursday in Mondragone, with Italians in the streets jeering at the Bulgarian residents of the apartment complex where the cluster originated. Washington Post, "The Latest: Mayo Clinic to end pay cuts, recall workers," 26 June 2020 The crowd’s cheering, the cluster’s dancing, an energy that could be felt through the screen. Alamin Yohannes, EW.com, "Sense 8 cast members look back on Lito’s powerful coming out at São Paulo Pride," 24 June 2020 This intimate picture of the swarm’s progression suggests that the cluster of quakes was triggered by fluids being naturally injected into the fault system. Riley D. Champine, National Geographic, "A strange earthquake swarm lasted for years. Scientists finally know why.," 18 June 2020 Recent Examples on the Web: Verb The first few weeks saw a similar standoff each night: Protesters would cluster at the fence and yell for the defunding of the police department. oregonlive, "Portland’s Justice Center fence: A daunting place after dark for both protesters and police," 28 June 2020 In the continuum of care, treatment resources cluster around outpatient treatment, such as weekly therapy with a counselor, and inpatient treatment, such as admission to a psychiatric hospital. Isobel Rosenthal, Scientific American, "Mental Health after COVID-19," 17 June 2020 Traditionally, gamblers cluster together at table games, and slot machines are side by side. Cincinnati.com, "Sure bet or rolling the dice? Casinos to reopen with coronavirus precautions," 17 June 2020 Not many in the audience were wearing masks but most seemed to cluster with the people at their tables. Ed Masley, azcentral, "Concerts return to metro Phoenix as Arizona reopens: Inside clubs, bars and music venues," 12 June 2020 Several excesses seem to cluster around a value of 10 hertz per kilogram of detector mass. Daniel Garisto, Scientific American, "Direct Proof of Dark Matter May Lurk at Low-Energy Frontiers," 9 June 2020 Microsoft has been engaged in a 15-year effort to cluster data centers in San Antonio. Patrick Danner, ExpressNews.com, "Texas construction company, Microsoft clash over San Antonio data center," 4 June 2020 However, photos sent to The Oregonian/OregonLive by Troutdale workers show employees frequently clustered together during breaks and while entering and leaving the facility. oregonlive, "Two new coronavirus cases at Amazon’s Troutdale warehouse bring the total to four," 3 June 2020 Having people clustered together on the front lawn is too close for our comfort. Amy Dickinson, Detroit Free Press, "Health precludes partying during pandemic," 20 May 2020

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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Time Traveler for cluster

Time Traveler

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

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Statistics for cluster

Last Updated

13 Jul 2020

Cite this Entry

“Cluster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cluster. Accessed 13 Jul. 2020.

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More Definitions for cluster

cluster

noun
How to pronounce cluster (audio)

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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