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

• accumulate
• assemble
• bulk (up)
• collect
• concentrate
• congregate
• constellate
• corral
• garner
• gather
• group
• lump
• pick up
• round up

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

Barton's cleaning video has amassed over 11 million views and over 7,500 comments, dividing viewers. —Daniella Gray, Newsweek, 29 Jan. 2025

In the five years since its launch, Bookshop.org has amassed quite the loyal following. —Boone Ashworth, WIRED, 28 Jan. 2025

The reports, which have caused panic amongst tribal communities in both states, come amid the Trump administration’s attempt to ramp up undocumented immigrant arrests nationwide and amass a larger force to carry out the president’s deportation pledge. —Alaa Elassar, CNN, 27 Jan. 2025

Throughout his probes, the former special counsel amassed a staff of prosecutors and agents to conduct grand jury investigations and try the cases in court. —Robert Legare, CBS News, 27 Jan. 2025

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

Kids Definition

amass

verb

ə-ˈmas 

: to collect into a mass : accumulate

amasser noun