en masse

adverb

äⁿ(n)-ˈmas  -ˈmäs  än- 

en-

: in a body : as a whole

moved the inmates en masse to the new prison

Examples of en masse in a Sentence

Her supporters arrived en masse for the rally.

Recent Examples on the Web

Trump has made false claims about voting fraud, such as insisting noncitizens are casting ballots en masse. — Jill Colvin, Chicago Tribune, 4 Nov. 2026

The Justice Department already subpoenaed thousands of voter records from state and local officials related to claims that noncitizens were voting en masse in California. — Sonja Sharp, Los Angeles Times, 31 Oct. 2026

Officials who appear loyal today might withhold cooperation from a startled regime, engage in a power struggle, or defect en masse. — Jieun Baek, Foreign Affairs, 30 Oct. 2026

For example, Arnold and his colleagues discovered a technique that degrades proteins that hold synapses together, deleting them from neurons en masse. — Simon Makin, Scientific American, 29 Oct. 2026

Word History

Etymology

French

First Known Use

1795, in the meaning defined above

Rhymes for en masse

• alas
• amass
• bromegrass
• bypass
• crabgrass
• crevasse
• eelgrass
• eyeglass
• groundmass
• harass
• impasse
• jackass

Kids Definition

en masse

adverb

än-ˈmas 

: in a body : as a whole