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

TikTok Users Reacts Annie's efforts with Baloo quickly touched people's hearts and as of Wednesday, the TikTok video amassed over 1.7 million views, 57,300 likes and 1,221 comments. —Russel Honoré, Newsweek, 5 Mar. 2025

Since her divorce, Wang has put as much as 90% of her monthly income into investments, amassing a stock portfolio worth seven figures. —Mike Winters, CNBC, 4 Mar. 2025

Over recent weeks in this space, pitch grades have been assigned to each qualifying pitch within the arsenal of each starter who amassed 135 or more innings in 2024. —Tony Blengino, Forbes, 4 Mar. 2025

Over the past four years, Patel has toured more than 80 cities, with social media clips from his journey amassing hundreds of millions of views. —Matt Grobar, Deadline, 3 Mar. 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

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