cluster

noun
clus·ter | \ ˈkləs-tər \

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\-t(ə-)riŋ \

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 \-t(ə-)rē \ 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

When politics is so polarised, people no longer cluster in the ideological middle. The Economist, "Fork in the roadShould the party move to the left or to the centre?," 12 July 2018 Below are three of our favorites: zero-degree chili, quinoa granola clusters, and foil-packet salmon with lemon, thyme, and blueberries. Blake Bakkila, Health.com, "3 Easy Summer Campfire Recipes Your Entire Family Will Enjoy," 22 June 2018 The crowd was a mix of children, hardcore gamers—a cluster of young men from the University of Nevada Las Vegas—and first-timers who’d wandered in from the casino floor, oversize novelty cups in hand. Leigh Kamping-carder, WSJ, "Professional Videogamers Get Their Own Stadiums," 20 June 2018 Leroi and colleagues have enlisted audio analysis techniques to sort a 50-year sample of 17,000 songs into clusters, much as field biologists might group species. Jonathon Keats, Discover Magazine, "Science of Music," 15 June 2018 In the Chicago area, typical summer thunderstorms cluster in the 35,000-45,000 foot height range, while tops of severe thunderstorms can grow to 60,000 feet. Tom Skilling, chicagotribune.com, "Ask Tom: Why can thunderstorm clouds be 10 miles tall?," 10 June 2018 Other Bay Area radio vets at KOZT include Kate Hayes and Tom Yates … Good news for the beleaguered Cumulus Media’s local cluster: Doug Harvill, late of CBS Radio’s S.F. stations, is taking over as SVP/market manager. Ben Fong-torres, San Francisco Chronicle, "Sports radio talkers snubbed in trade publication’s ‘Heavy 100’ rankings," 6 June 2018 Hexagon then predicts which strings of DNA, or gene clusters, are most likely to produce specific types of chemical compounds. Peter Andrey Smith, Bloomberg.com, "This Fungus Could Help Cure Cancer," 4 June 2018 Half the wine was fermented traditionally, half as whole clusters on their stems, producing a carbonic fermentation that gives the wine its youthful fragrance, fruitiness and vitality. Mike Dunne, sacbee, "Bright and intriguing wines in full bloom at these four foothill wineries | The Sacramento Bee," 9 May 2018

Recent Examples on the Web: Verb

One group, clustered around Treasury Secretary Steven Mnuchin, seeks a big increase in Chinese purchases, which would force Beijing to ease import restrictions on agricultural goods, U.S. movies and other items. Lingling Wei, WSJ, "U.S., China Dig In for Long Trade Fight as Tariffs Take Effect," 6 July 2018 So soon after that, with a group of Charlie's friends clustered around his hospital bed, a priest gave Charlie the last rites, the Bangor Daily News reported. Lisa Gutierrez, kansascity, "Teen shot in the head is given last rites. Then he sat up and said hello, his mom says," 5 July 2018 The workers clustered around the machines will probably be replaced by machines themselves in a year or two. Li Yuan, BostonGlobe.com, "Why the Made in China 2025 modernization drive is on track to succeed, despite Trump," 4 July 2018 In the cold, when the bees were clustered and the comb was hard to inspect visually, Mack used his nose. New York Times, "With a Sniff and a Signal, These Dogs Hunt Down Threats to Bees," 3 July 2018 The tour passed through recreation rooms where youths clustered around game consoles playing digital soccer. Molly Hennessy-fiske, chicagotribune.com, "Go inside a U.S. migrant youth shelter in a former Walmart — cots, soccer and a Trump mural," 14 June 2018 Loon’s huge balloons navigate wind currents in the stratosphere, roughly 13 miles above ground, to cluster around areas with poor connectivity. Jack Nicas, New York Times, "Google’s Parent Births New Businesses: Balloons and Drones," 11 July 2018 The price of fuel in Texas, where oil refineries are clustered, averaged $2.66 on Tuesday. Nathan Bomey, USA TODAY, "Fourth of July gas prices: Don't fill up in these states on your roadtrip," 4 July 2018 Our employment centers are not as clustered as New York or Washington, D.C. Scott Maxwell, OrlandoSentinel.com, "15 questions for the candidates for Orange County mayor. Where do they stand?," 24 May 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

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

Verb

see cluster entry 1

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Statistics for cluster

Last Updated

18 Sep 2018

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 \

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 \

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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occurring twice a year or every two years

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