\ 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

The lefty who’s starting Sunday has amassed 1,695 career regular-season strikeouts. Steve Kroner,, "Giants’ Bruce Bochy extols Will Smith, Madison Bumgarner," 30 June 2019 Now a 16 years old, Maddie Ziegler has amassed an impressive net worth, several licensing and merchandise deals, and even an A-list celeb mentor, all without the help of her former dance teacher. Mackenzie Dunn, Woman's Day, "Here’s What Maddie Ziegler Has Been Up to Since Leaving ‘Dance Moms'," 14 June 2019 Despite accusations of the news outlet violating copyright of content published by Chinese business news channel Caixin, Bloomberg and Dow Jones, the news app has amassed 180 million users, according to the South China Morning Post. Jane Li, Quartz, "US-China trade tensions have hit a business news app backed by China’s “Rupert Murdoch”," 11 June 2019 For those of you who want to continue following Rodney, perhaps for more sage travel tips, his dad created an Instagram account for him, which has already amassed more than 1,000 followers. Breanna Edwards, Essence, "Adorable 4-Year-Old Gathers Plane Passenger Who Put Her 'Stinky Feet' On His Armrest," 7 June 2019 The coalition, which includes the local parent-teacher association and the Jefferson County teachers union, has amassed thousands of signatures on an online petition opposing the takeover. Darcy Costello, The Courier-Journal, "JCPS parents to state school board: 'If you take us over, you lose us'," 6 June 2018 According to the number crunchers at FiveThirtyEight, Gillibrand has amassed the most solidly anti-Trump voting résumé of any senator. Jason Zengerle, GQ, "Kirsten Gillibrand, the Senator From the State of #MeToo," 17 Apr. 2018 In the opening Iowa caucuses, that could prove to be crucial in amassing the 15 percent support required for a candidate to claim convention delegates. Sarah Elbeshbishi, USA TODAY, "Poll: What do Democrats want to hear about at the debates? (Hint: It's not Trump.)," 19 June 2019 Here's a breakdown of how the TV star amassed her enormous fortune. Kelly O'sullivan, Country Living, "'Law and Order: SVU' Star Mariska Hargitay's Net Worth Will Blow You Away," 8 June 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

7 Jul 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

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