Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “mass”


verb [I/T] (CREATE LARGE AMOUNT)   /mæs/
to come or bring together in large numbers: [I] The crowd massed around the entrance to the exhibition.
(Definition of mass verb (CREATE LARGE AMOUNT) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of mass

Definitions of “mass” in other dictionaries

Word of the Day


a document given to students or reporters which contains information about a particular subject

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More