ac·​cu·​mu·​la·​tion | \ ə-ˌkyü-m(y)ə-ˈlā-shən How to pronounce accumulation (audio) \

Definition of accumulation

1 : something that has accumulated or has been accumulated an impressive accumulation of knowledge
2 : the action or process of accumulating something : the state of being or having accumulated the steady accumulation of snow
3 : increase or growth by addition especially when continuous or repeated accumulation of interest

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Examples of accumulation in a Sentence

a vast accumulation of evidence about the dangers of smoking the accumulation of leaves on the ground is proceeding at a much faster rate than my raking
Recent Examples on the Web Forecasters say to expect between a quarter and a half an inch of accumulation. Holly V. Hays, Indianapolis Star, "There's snow in the forecast because groundhogs are terrible meteorologists," 3 Feb. 2020 An inch or less of accumulation is forecast each day, according to the weather service. Joe Taschler, Milwaukee Journal Sentinel, "Nearly constant light snow will add up to 3 to 5 inches for Milwaukee between now and weekend," 22 Jan. 2020 Areas from 1,500-2,000 feet in the foothills and the Coast Range will see a few inches of accumulation throughout the day. oregonlive, "Portland metro Monday weather: Snow stays in the hills; rain/snow mix in town," 13 Jan. 2020 Harry's 1D days were the start of his accumulation of of his wealth. Jasmine Gomez, Seventeen, "Harry Styles' Net Worth Will Make You Crave Some "Watermelon Sugar"," 19 Dec. 2019 The Coyotes, touted as a potential playoff team based on their accumulation of young talent, pulled even at 9:03 of the second period on a one-timer by Derek Stepan, who was set up nicely by Phil Kessel. Los Angeles Times, "Column: Ducks are in a rush to set tone in opener with new coach Dallas Eakins," 3 Oct. 2019 Government should not impede or discourage parents in their conscientious accumulation, husbanding and investment of those assets for their children’s education, broadly construed. George Will, Twin Cities, "George Will: Is the individual obsolete?," 17 July 2019 Its accumulation of a 13% stake turned Rakuten into the biggest investor in the ride-hailing company. Mayumi Negishi, WSJ, "Lyft IPO Feeds War Chest of Japan’s Online-Shopping King," 29 Mar. 2019 One to three inches of accumulation are expected in both cities. Evan Macdonald, cleveland, "Snow could disrupt New Year’s Eve commute before transitioning to lake effect east of Cleveland," 31 Dec. 2019

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

15th century, in the meaning defined at sense 1

History and Etymology for accumulation

borrowed from Middle French & Latin; Middle French accumulacion, borrowed from Latin accumulātiōn-, accumulātiō, from accumulāre "to accumulate" + -tiōn-, -tiō, suffix of action nouns

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Time Traveler for accumulation

Time Traveler

The first known use of accumulation was in the 15th century

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Statistics for accumulation

Last Updated

8 Feb 2020

Cite this Entry

“Accumulation.” Dictionary, Merriam-Webster, Accessed 17 Feb. 2020.

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More Definitions for accumulation


ac·​cu·​mu·​la·​tion | \ ə-ˌkyü-myə-ˈlā-shən How to pronounce accumulation (audio) \

Kids Definition of accumulation

1 : an act of collecting or gathering the accumulation of snow
2 : collection sense 2 an accumulation of junk



Legal Definition of accumulation

: increase or growth by addition especially when continuous or repeated specifically : an increase in the amount of a fund or property by the continuous addition to it of the income or interest it generates to treat a stock dividend as principal when local law classifies it as income may be deemed an accumulation— W. M. McGovern, Jr. et al. — see also accumulation trust at trust

Note: Because they prevent the enjoyment and benefit of wealth, accumulations are deemed contrary to public policy. A provision in a will for an accumulation will be invalidated if found to be unreasonable by the court.

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