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

Supporters embraced the insult as a badge of resilience, turning it into a satirical political campaign that amassed more than 21 million Instagram followers in a few days. — ABC News, 18 July 2026

In his four years as head coach, Setencich amassed a 24-20 record, including a 16-12 mark in Big Sky play. — Shaun Goodwin, Idaho Statesman, 17 July 2026

Burger joint, dairy market and ice cream shop Braum’s has amassed a cult following across its restaurants in Missouri, Kansas, Arkansas and Oklahoma. — Kansas City Star, 17 July 2026

The candidates, both Republicans and running in separate districts, have amassed two of the biggest war chests in the area, according to the most recent quarterly financial reports, which were released this week. — Annie Martin, The Orlando Sentinel, 17 July 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
• crabgrass
• crevasse
• eelgrass
• eyeglass
• groundmass
• harass
• impasse
• jackass
• landmass

Kids Definition

amass

verb

ə-ˈmas 

: to collect into a mass : accumulate

amasser noun