amassed; amassing; amasses
Synonyms 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.
amasser noun
amassment 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Volatile, quarrelsome, dogmatic, and sure of his own brilliance, Reinhold outraged patrons, amassed huge debts, and turned his eldest son into an exhausted workhorse. Jenny Uglow, The New York Review of Books, 4 July 2026 An Associated Press camera outside the arena showed a long line of black SUVs dropping off wedding-goers in tuxedos and evening gowns, surrounded by New Yorkers in shorts and Swifties amassing for the occasion. ABC News, 3 July 2026 The Italian jockey, who famously went through the card with seven winners in seven races at Ascot in September 1996, has amassed more than 3,350 victories in his career, mostly in England. Ryan Morik, FOXNews.com, 2 July 2026 Bell’s letter to James and New York MFCU Director Amy Held argues that the unit is moving too slowly on cases and amassing too few indictments and convictions for wrongdoing in the Medicaid system. Ali Swenson, Fortune, 2 July 2026 See All Example Sentences for amass

Word History

Etymology

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

First Known Use

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

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

Browse Nearby Words

Cite this Entry

“Amass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amass. Accessed 5 Jul. 2026.

Kids Definition

amass

verb
: to collect into a mass : accumulate
amasser noun

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