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 Mike Sena helps neighboring public safety agencies track overdose clusters and other trends as the executive director of the Northern California High Intensity Drug Trafficking Area, a regional branch of a national DEA program. Megan Cassidy, SFChronicle.com, "Suspected fentanyl OD turns night of partying into tragedy for popular Oakland men," 27 Dec. 2019 Individuals were able to view and learn about clusters and shooting stars, individual stars, planets, deep sky objects, and the northern and southern lights, among other things. Danny Atkinson, courant.com, "Stargazing Night Provides A Look Into The Heavens," 9 Dec. 2019 Lines of light ranged in the nonspace of the mind, clusters and constellations of data. Joshua Rothman, The New Yorker, "How William Gibson Keeps His Science Fiction Real," 9 Dec. 2019 People are not clusters of symptoms but individuals with histories, and wants. Jenny Anderson, Quartz, "How a small British town used social connections to make residents happier and healthier," 3 Dec. 2019 Preceding Orion are the bright autumn constellations Taurus the Bull, with the wonderful Pleiades star cluster, and Auriga, the constellation that looks like a lopsided pentagon with the bright star Capella. Mike Lynch, Twin Cities, "Skywatch: Have a holly jolly starwatching season," 1 Dec. 2019 Since its launch in 1999, NASA’s Chandra X-ray Observatory has been studying the heavens through short-wavelength x-ray light, the best window for sighting colossal black holes, galaxy clusters and the remnants of violent supernovae. Belinda J. Wilkes, Scientific American, "Photo Gallery: The Universe through X-ray Eyes," 20 Nov. 2019 Both radiants are south of the Pleiades star cluster and the constellation Taurus the Bill. Leada Gore | Lgore@al.com, al, "Taurid meteor shower 2019:How to see shooting stars this week," 5 Nov. 2019 On Friday, Fonda emerged from a cluster of officers and stepped smartly into the police wagon, her hands cuffed in front of her. Washington Post, "Jane Fonda returns to civil disobedience for climate change," 19 Oct. 2019 Recent Examples on the Web: Verb But for the Hasidic community, long clustered in parts of Brooklyn, Jersey City represented an opportunity. Washington Post, "Jersey City grapples with ramifications of shooting at kosher market," 13 Dec. 2019 On a recent visit, students clustered in small groups around workbenches to practice building circuits that would make small motors run. USA TODAY, "The US held a record number of migrant children in custody in 2019," 13 Nov. 2019 On a recent visit, students clustered in small groups around workbenches to practice building circuits that would make small motors run. Garance Burke, Twin Cities, "US held record number of migrant children in custody in 2019," 12 Nov. 2019 On a recent visit, students clustered in small groups around workbenches to practice building circuits that would make small motors run. Garance Burke, The Denver Post, "U.S. held record number of migrant kids in custody in 2019," 12 Nov. 2019 On a recent visit, students clustered in small groups around workbenches to practice building circuits that would make small motors run. Fortune, "Migrant Children Held This Year by U.S. Nears a Record 70,000," 12 Nov. 2019 This sometimes has led to hostile and politically divisive clashes, like when a luxury auction house at the foot of Potrero turned its sprinklers on the tents clustered outdoors in 2016. Lauren Smiley, The Atlantic, "The Porch Pirate of Potrero Hill Can’t Believe It Came to This," 1 Nov. 2019 Dozens of fascist gatherings were held every week in London alone, clustering in Jewish areas in the city’s north and east. The Economist, "When fascists and Jews battled on the streets of London," 19 Oct. 2019 Senator Elizabeth Warren of Massachusetts worked against the tax on medical-device manufacturers, many of which just happen to be clustered around Boston. The Editors, National Review, "Ad Hocracy," 17 Dec. 2019

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

9 Jan 2020

Cite this Entry

“Cluster.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/clusters. Accessed 19 January 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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