\ 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 \ -​mənt How to pronounce amassment (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

Hamas seized control of Gaza in 2007, prompting Israel and Egypt to impose a blockade on the territory, largely to prevent the militants from amassing more weapons. Fares Akram, The Seattle Times, "Hamas has developed a vast arsenal in blockaded Gaza," 25 Mar. 2019 The way to victory lies in amassing precious Æmber. Charlie Theel, Ars Technica, "KeyForge: The red-hot card game where every deck is unique—and unchangeable," 15 Dec. 2018 Some of the groups most vocally critical of Total Information Awareness—the Electronic Frontier Foundation, the Open Technology Institute—have been largely silent about Facebook's and Google’s amassing of similar power. Renee Diresta, WIRED, "How the Tech Giants Created What Darpa Couldn’t," 29 May 2018 For reference, that's less than half of what the New York Yankees' bullpen (34 percent) has amassed this season. Jesse Newell, kansascity, "'Beyond frustration': Royals' starting pitching woes continue as Rays sweep series," 16 May 2018 In this movie, the Avengers join forces with the Guardians of the Galaxy to stop Thanos from amassing the all-powerful Infinity Stones. Orlando Sentinel,, "PODCAST: 'Avengers: Infinity War' — The rise and demise of Marvel superheroes (Ep. 21)," 23 Apr. 2018 While their neighbors in Los Angeles, the Rams, stole headlines by amassing big names through trades and free agency, the Chargers took a different approach, making smaller moves. Dan Woike,, "As Chargers prepare for NFL draft, linebackers will be one of their top priorities," 12 Apr. 2018 While their neighbors in Los Angeles, the Rams, stole headlines by amassing big names through trades and free agency, the Chargers took a different approach, making smaller moves. Dan Woike,, "Chargers looking for help at linebacker in NFL draft," 12 Apr. 2018 The deeper and wider your navel is, the more space available for fluff to amass. Carolyn L. Todd, SELF, "Excuse Me, What Even Is Belly Button Lint?," 1 Mar. 2019

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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Statistics for amass

Last Updated

26 May 2019

Look-up Popularity

Time Traveler for amass

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

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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.

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More from Merriam-Webster on amass

Rhyming Dictionary: Words that rhyme with amass

Thesaurus: All synonyms and antonyms for amass

Spanish Central: Translation of amass

Nglish: Translation of amass for Spanish Speakers

Britannica English: Translation of amass for Arabic Speakers

Comments on amass

What made you want to look up amass? Please tell us where you read or heard it (including the quote, if possible).


a strong desire or propensity

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