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.
Of that portion, MSC’s port operator Terminal Investment Limited (TIL) would amass a 51-percent stake in the global ports’ assets, with a BlackRock entity controlling the remaining 49 percent. Glenn Taylor, Sourcing Journal, 28 July 2025 Today, women in NHRA have amassed an impressive resume, with more than 100 women having won at an NHRA national event and athletes like two-time Top Fuel champion Brittany Force paving the way as the fastest person in NHRA history, setting a national record of 3.62-seconds at 341.59-mph. Caroline Fitzgerald, Forbes.com, 26 July 2025 Once neighbors had amassed a pile of larger items, one of the camp's earliest residents, a sinewy man in his 50s named Tom Rock, walked over and began helping to lift them into the dumpster. Jordan Smith, IndyStar, 26 July 2025 But despite still amassing wins and accolades, Ledecky – whose early career was characterized by outrageously fast times – hadn’t bagged a world record in seven years. Amy Woodyatt, CNN Money, 25 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 1 Aug. 2025.

Kids Definition

amass

verb
: to collect into a mass : accumulate
amasser noun

More from Merriam-Webster on amass

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