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 25-year-old menswear influencer produces content rooted in educational style advice that often focuses on timeless brands like Ralph Lauren and Giorgio Armani, and has rapidly amassed over 500,000 followers across TikTok and Instagram since 2022. —Ashley Ogawa Clarke, Vogue, 12 Jan. 2026

Meg captured her now-8-year-old daughter using her new landline on Christmas and shared it on TikTok, and the video has already amassed over 3 million views. —Tereza Shkurtaj, PEOPLE, 11 Jan. 2026

De'Anthony Melton scored 19 points, Podziemski had 14 and Gary Payton II added 12 points to go with eight rebounds as the Warriors' reserves amassed 66 points. —CBS News, 10 Jan. 2026

Leveraging 800 patents to advance solid-state battery technology So far, Tailan New Energy has amassed more than 800 patents spanning battery materials, cell design, and manufacturing processes. —Bojan Stojkovski, Interesting Engineering, 10 Jan. 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