ag·​gre·​ga·​tion | \ ˌa-gri-ˈgā-shən How to pronounce aggregation (audio) \

Definition of aggregation

1 : a group, body, or mass composed of many distinct parts or individuals A galaxy is an aggregation of stars and gas.
2a : the collecting of units or parts into a mass or whole
b : the condition of being so collected

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Other Words from aggregation

aggregational \ ˌa-​gri-​ˈgā-​shnəl How to pronounce aggregation (audio) , -​shə-​nᵊl \ adjective

Examples of aggregation in a Sentence

Recent Examples on the Web Eligo provides power at the same rate as ComEd, but guarantees the source is 100% green, said Arnie Schramel, of Progressive Energy Group, the city’s aggregation partner. Steve Lord,, 29 May 2021 If done correctly, review aggregation could help retailers build greater trust, speed the path to purchase and increase sales. Paul Kirwin, Forbes, 25 May 2021 Customers in community choice aggregation energy programs also receive the credit. Rob Nikolewski, San Diego Union-Tribune, 24 Mar. 2021 According to Indeed, the large job aggregation site, job postings have increased rapidly in low work-from-home sectors like cleaning and sanitation. Jack Kelly, Forbes, 24 May 2021 Eventually, in theory, some aggregation of state immunization registries could make the fantasy of a countrywide vaccine passport a reality. Ian Bogost, The Atlantic, 14 May 2021 As of Wednesday, 53.4% of Americans approve of Biden, according to FiveThirtyEight's aggregation of leading pollsters. Fortune, 21 Apr. 2021 The unregulated sale of massive databases of citizen information—and the unregulated aggregation and publication of that information online—also undermines national security. Justin Sherman, Wired, 13 Apr. 2021 As a technology, stores all data without sampling and aggregation, allowing precise conversion to clicks (deterministic attribution). Frederick Daso, Forbes, 7 May 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aggregation.' 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 aggregation

1547, in the meaning defined at sense 1

History and Etymology for aggregation

Middle English aggreciacioun "process of adding numbers, gathering of pus or humors," borrowed from Late Latin aggregātiōn-, aggregātiō "gathering together," from Latin aggregāre "to cause to flock together, aggregate entry 2" + -tiōn-, -tiō, suffix of action nouns

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Time Traveler for aggregation

Time Traveler

The first known use of aggregation was in 1547

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Statistics for aggregation

Last Updated

9 Jun 2021

Cite this Entry

“Aggregation.” Dictionary, Merriam-Webster, Accessed 16 Jun. 2021.

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More Definitions for aggregation


ag·​gre·​ga·​tion | \ ˌa-gri-ˈgā-shən How to pronounce aggregation (audio) \

Kids Definition of aggregation

1 : the collecting of units or parts into a mass or whole The formation of a blood clot begins with the aggregation of platelets.
2 : a group, body, or mass composed of many distinct parts A galaxy is an aggregation of stars, gas, and dust.


ag·​gre·​ga·​tion | \ ˌa-grə-ˈgā-shən How to pronounce aggregation (audio) \

Legal Definition of aggregation

1 : the collecting of individual units (as damages) into a whole
2 : a collection of separate parts that is unpatentable because no integrated mechanism or new and useful result is produced — compare combination, equivalent

More from Merriam-Webster on aggregation

Thesaurus: All synonyms and antonyms for aggregation

Britannica English: Translation of aggregation for Arabic Speakers


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