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 actress was filming in New York City on Wednesday in a pair of pumps from the celebrity-favorite footwear brand Jude, which has amassed quite the following since its 2024 launch. — Jaden Thompson, Footwear News, 15 Oct. 2026

Elliott has amassed 10 top 10 hits on the Billboard Hot 100 and five top 10 albums on the Billboard 200. — Paul Grein, Billboard, 15 Oct. 2026

The post amassed more than 1,100 likes and more than 150 comments. — Stephanie Breijo, Los Angeles Times, 14 Oct. 2026

Outlit’s goal is to amass as much real-time information about a company’s clients as possible. — Maggie Harrison Dupré, Futurism, 14 Oct. 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