\ ə-ˈmas \
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.

Keep scrolling for more

Other words from amass

amasser noun
amassment \-mənt \ 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

But, according to some patrons, the store, which opened in March, has already amassed a legion of loyal customers. Graham Ambrose,, "Free coffee — with a catch — is coming to Massachusetts," 14 July 2018 In the few hours that have passed since Malala joined Instagram, her first post has already amassed nearly 20,000 photos, and her follower count has jumped to more than 30,000. Andrea Park, Teen Vogue, "Malala Yousafzai Joins Instagram on Her 21st Birthday," 12 July 2018 Smith joined Instagram less than a year ago and has already amassed almost 18 million followers, and has used the platform to post life advice, adorable throwback photos of his family, and share his new music. Esme Douglas,, "Will Smith makes an extreme #InMyFeelingsChallenge video," 12 July 2018 Pruitt amassed a truly remarkable number of corruption scandals during his time in office, including having staffers spend official time trying to find a lucrative DC job for Pruitt’s wife. Dara Lind, Vox, "Read Scott Pruitt’s totally unapologetic resignation letter," 5 July 2018 In the pitch, Owens claimed her team had already amassed profiles on thousands of individuals, using real Twitter, Facebook and Instagram posts. NBC News, "YouTube tested, Trump approved: How Candace Owens suddenly became the loudest voice on the far right," 23 June 2018 June 12, 2018 At the time of publication, the account has already amassed around 92,000 followers (and rising quickly)—further proof that this is the exact brand of idiotic and surreal humor to soothe America’s chapped soul. Cady Drell, Marie Claire, "'Wheel Of Fortune Answers' Is the Best Thing on Twitter Right Now," 12 June 2018 At age 18, Goldberg has already amassed an enviable resume. Marilyn Bailey, star-telegram, "To get more kids to love opera this high school soprano is putting on a benefit concert | Fort Worth Star-Telegram," 16 May 2018 And it's already amassed an impressive slate of shows for its honeymoon season, from Justin Timberlake to Elton John, and Maroon 5 to Fleetwood Mac. Piet Levy, Milwaukee Journal Sentinel, "Review: Bon Jovi sends Milwaukee's BMO Harris Bradley Center out with a bang," 29 Apr. 2018

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.

See More

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

Keep scrolling for more

Learn More about amass

Statistics for amass

Last Updated

1 Sep 2018

Look-up Popularity

Time Traveler for amass

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

See more words from the same century

Keep scrolling for more

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 \
amassed; amassing

Kids Definition of amass

: to collect or gather together The businessman was able to amass a fortune.

Keep scrolling for more

Comments on amass

What made you want to look up amass? Please tell us where you read or heard it (including the quote, if possible).


an open space surrounded by woods

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

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