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.
The Pegula family amassed a fortune in the fracking business and is perhaps most known as the principal owners of the Buffalo Bills and the NHL’s Buffalo Sabres (along with tennis success). Eric Jackson, Sportico.com, 10 Apr. 2025 Mid- to late-career professionals amass knowledge from an array of life events. Expert Panel®, Forbes.com, 9 Apr. 2025 Adolescence now sits in fourth place in Netflix’s Most Popular English-Language TV list after amassing 114.5M views since its March 13 release. Jake Kanter, Deadline, 9 Apr. 2025 In just a matter of days, the post has amassed over 16,600 views and hundreds of likes at the time of writing. Raja Krishnamoorthi, MSNBC Newsweek, 9 Apr. 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 14 Apr. 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!