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mass

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1mass/ˈmæs/noun
pluralmasses
1mass
/ˈmæs/
noun
pluralmasses
Learner's definition of MASS  
[count] : a usually large amount of a substance that has no particular shape— often + of
[count] : a large number or amount of something
   b [count] : a large number of people
   c masses [plural]British, informal : a large amount of something
the masses : the ordinary or common people
[noncount]physics : the quantity of matter in something

the mass of

: the main part of (something)
2mass/ˈmæs/verb
massesmassedmassing
2mass
/ˈmæs/
verb
massesmassedmassing
Learner's definition of MASS  
: to form or gather into a large group
[no object]
[+ object]
3mass/ˈmæs/adjective
3mass
/ˈmæs/
adjective
Learner's definition of MASS  
always used before a noun
: involving, affecting, or designed for many people
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