amass

verb

ə-ˈmas 

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

ə-ˈmas-mənt 

noun

Synonyms of amass

• collect
• gather
• assemble
• accumulate
• garner

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 move to Amazon comes after the episode premiered on the Backyard Sports YouTube channel on January 29, quickly amassing more than 1M unique views on the platform. —Katie Campione, Deadline, 27 Mar. 2026

Now the content creator — who has amassed over 12 million followers across platforms — is making a historic leap from social media to streaming television. —Hanna Wickes, Miami Herald, 27 Mar. 2026

The free and open-source agents quickly amassed a loyal following, allowing users to give AI control over their email inboxes, messaging platforms, and even crypto holdings. —Victor Tangermann, Futurism, 26 Mar. 2026

Armed with a microphone and a sunny disposition, Burleson quickly went viral on TikTok for his quippy, man-on-the-street style interviews, amassing over two million followers. —Arushi Jacob, Variety, 26 Mar. 2026

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

Rhymes for amass

• alas
• bromegrass
• bypass
• chagas
• crabgrass
• crevasse
• eelgrass
• eyeglass
• groundmass
• harass
• impasse
• jackass

Kids Definition

amass

verb

ə-ˈmas 

: to collect into a mass : accumulate

amasser noun