\ ə-ˈmas How to pronounce amass (audio) \
amassed; amassing; amasses

Definition of amass

transitive verb

1 : to collect for oneself : accumulate amass a great fortune
2 : to collect into a mass : gather must select rather than simply amass details

intransitive verb

: to come together : assemble Dark clouds amassed over the city.

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Other Words from amass

amasser noun
amassment \ ə-​ˈmas-​mənt How to pronounce amass (audio) \ noun

Examples of amass in a Sentence

They've amassed a wealth of information. amassed a truckload of donations in the course of their canned food drive
Recent Examples on the Web For those still contributing to retirement savings accounts, another way to amass Roth assets is to switch contributions from a traditional 401(k) or IRA to a Roth account. Anne Tergesen, WSJ, "Biden Tax Plan’s Potential Impact on Your IRA," 30 Apr. 2021 On the face of it, 529s offer a way to amass substantial savings in a short period of time. Chris Carosa, Forbes, "Should You Choose A 529 Or A Roth Child IRA?," 26 Apr. 2021 All a gamer influencer needs to do is create popular content on any social media platform and begin to amass a following. Ellen Zavian, Forbes, "As Laws Catch Up To The Digital Age, Gaming Influencers Must Close Pay Attention," 19 Apr. 2021 The sums reflect an emerging incentive structure in Washington, where the biggest provocateurs can parlay their notoriety into small-donor successes that can help them amass an even higher profile. New York Times, "Fund-Raising Surged for Republicans Who Sought to Overturn the Election," 17 Apr. 2021 The sums reflect an emerging incentive structure in Washington, where the biggest provocateurs can parlay their notoriety into small-donor successes that can help them amass an even higher profile., "Fundraising surged for Republicans who sought to overturn the election," 17 Apr. 2021 Discussion of the bill further highlights how government officials, both foreign and domestic, have used commercially run databases to access and amass personal information at a huge scale. Washington Post, "Wyden urges ban on sale of Americans’ personal data to ‘unfriendly’ foreign governments," 15 Apr. 2021 Last season, Arizona State was the only team to amass more than 500 yards of offense against the Beavers. oregonlive, "Oregon State’s defense on a mission to fix its glaring takeaway problem," 8 Apr. 2021 Cookies are text files advertisers and publishers use to amass data on users’ web activity that can inform how to target ads. Patience Haggin, WSJ, "Google Crushed Many Digital Ad Rivals. But a Challenger Is Rising.," 4 Mar. 2021

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

15th century, in the meaning defined at transitive sense 1

History and Etymology for amass

Anglo-French amasser, from a- (from Latin ad-) + masser to gather into a mass, from masse mass

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Time Traveler for amass

Time Traveler

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

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Statistics for amass

Last Updated

8 May 2021

Cite this Entry

“Amass.” Dictionary, Merriam-Webster, Accessed 15 May. 2021.

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More Definitions for amass



English Language Learners Definition of amass

: to gather or collect (something, such as a large amount of money) especially for yourself


\ ə-ˈmas How to pronounce amass (audio) \
amassed; amassing

Kids Definition of amass

: to collect or gather together The businessman was able to amass a fortune.

More from Merriam-Webster on amass

Thesaurus: All synonyms and antonyms for amass

Nglish: Translation of amass for Spanish Speakers

Britannica English: Translation of amass for Arabic Speakers

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