amassed; amassing; amasses

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.
But the clip quickly went viral, amassing over 6.5 million views and thousands of comments. Jordan Greene, People.com, 15 July 2025 Nielsen figures for January to June show the series has amassed 25.06 billion minutes of viewing this year — which puts it on a similar pace to last year’s total of 55.62 billion minutes. Rick Porter, HollywoodReporter, 14 July 2025 Kimmel’s tribute to Otto has amassed 255,000 views and nearly 9,000 reactions and comments on Facebook as of July 14. Mark Price updated July 14, Miami Herald, 14 July 2025 Since leaving Texas on June 10 to begin their journey, the couple has amassed $4.9 million in donations, coming from new followers and other donations, including famous YouTubers like Mr. Beast, Dhar Mann, Doctor Mike and more. Sarah Moore, Freep.com, 14 July 2025 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 21 Jul. 2025.

Kids Definition

amass

verb
: to collect into a mass : accumulate
amasser noun

More from Merriam-Webster on amass

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!