Definition of mass
- Sunday masses held at three different hours
- Bach's Mass in B Minor
First Known Use: before 12th centurySee Words from the same year
A large crowd of demonstrators massed outside the courthouse.
Clouds were massing on the horizon.
The generals massed their troops.
Television is a mass medium.
: to form or gather into a large group
: involving, affecting, or designed for many people
What made you want to look up mass? Please tell us where you read or heard it (including the quote, if possible).
of very fine texture or delicate form
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