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 cluster (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 cluster (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 The interior is dominated by big, geometric buttons and knobs with a 12.3-inch digital gauge cluster and a 13.4-inch touchscreen. Connor Hoffman, Car and Driver, "830-HP 2024 GMC Hummer EV SUV Is an Open-Roof Off-Roader," 5 Apr. 2021 The driver’s cockpit, meanwhile, features a digital gauge cluster, a palm scanner for security and a jet fighter-style steering yoke. Bryan Hood, Robb Report, "MG’s Futuristic New Electric Car Concept Nods to Its Old-School Roadster Roots," 2 Apr. 2021 At noon on April 24, two days later, Jokhio’s station broke the full story about the cluster of H.I.V.-positive children in Ratodero. New York Times, "The City Losing Its Children to H.I.V.," 31 Mar. 2021 Bus 70 soon came to another stop, about 100 yards beyond the store, near a cluster of African migrants clutching tools and seeking work rebuilding homes. Washington Post, "All aboard Bus 70: Traveling a local Libyan route from war to hope and renewal," 31 Mar. 2021 In 1974, a team led by an astronomer at Cornell University named Frank Drake (which included Carl Sagan) put together the Arecibo Message, a radio transmission that was beamed to a cluster of stars more than twenty-five thousand light-years away. Daniel Alarcón, The New Yorker, "The Collapse of Puerto Rico’s Iconic Telescope," 29 Mar. 2021 That task has fallen to Catholic Charities, which contracted health workers to do the screenings under a cluster of temporary tents across the street from the downtown bus station. Rick Jervis, USA TODAY, "For many migrants able to cross US border, there's often chaos, COVID tests and then relief," 27 Mar. 2021 The power outages appear to be scattered about the region with a cluster of nearly 1,000 customers in the West Chester area affected, as of 7 a.m. Sarah Brookbank, The Enquirer, "6,000 without power as winds subside here," 26 Mar. 2021 Or opt for a technology package ($2,600) and get an 8-inch digital gauge cluster, head-up display, wireless charging pad and cornering front lamps. Tribune News Service, cleveland, "Impressive Cadillac XT4 carving a niche for itself (review)," 20 Mar. 2021 Recent Examples on the Web: Verb The furnaces or fornos used in glassmaking were at constant risk of catching fire, and as Venice was predominantly built of wood, the workshops were sent to cluster together off the main island. Lilah Ramzi, Vogue, "For Connoisseurs and Collectors, a Guide to Shopping Murano Glassware," 27 Mar. 2021 Because Republicans and Democrats tend to cluster in different places, even down to the level of neighborhood, a large partisan gap in vaccine uptake would likely lead to hot spots of infection. Paul Douglas, Star Tribune, "Looking Better For an Early Spring This Year," 24 Mar. 2021 Because Republicans and Democrats tend to cluster in different places, even down to the level of neighborhood, a large partisan gap in vaccine uptake would likely lead to hot spots of infection. Daniel Engber, The Atlantic, "The Vaccine Swing Voters," 22 Mar. 2021 Mid-century maps show buildings starting to cluster around existing settlements, and new ones emerging around stations of the Brighton & South Coast Railway. Washington Post, "In London’s Crystal Palace neighborhood, looking backward to move forward," 12 Feb. 2021 Similarly, there’s a specific distance scale that galaxies are more likely to cluster along. Ethan Siegel, Forbes, "Ask Ethan: Why Is The Universe Flat?," 5 Mar. 2021 Workers bustle cozily about a printshop making books; clockmakers are busy in a tidy studio filled with gears and wheels; the distillers cluster around a furnace, one leaning on a seated companion’s shoulder to point out something in a book. Jessica Riskin, The New York Review of Books, "When Engineers Were Humanists," 23 Feb. 2021 From midmorning to dusk people cluster around the fire pits outside the lodge, eating, drinking and laughing. Washington Post, "Skiing West Virginia’s ‘Canadian Valley’ amid record snowfall," 18 Feb. 2021 Many people refuse to wear masks and cluster in dense crowds inside bazaars, supermarkets, restaurants and mosques, oblivious to ubiquitous public health posters. New York Times, "Where a Vaccination Campaign Faces Skepticism, War and Corruption," 23 Feb. 2021

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 Apr 2021

Cite this Entry

“Cluster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cluster. Accessed 18 Apr. 2021.

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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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