mass Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “mass” in the English Dictionary

"mass" in British English

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massadjective [before noun]

uk   us   /mæs/
C1 having an ​effect on or ​involving a ​largenumber of ​people or ​forming a ​largeamount: weapons of mass destruction a mass murderer mass starvation Opposition ​groupsplan to ​stage mass demonstrations all over the ​country.

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massnoun

uk   us   /mæs/
  • mass noun (LARGE AMOUNT)

B2 [S] a ​largeamount of something that has no ​particularshape or ​arrangement: The ​explosionreduced the ​church to a mass ofrubble. The ​forest is a mass ofcolour in ​autumn.masses [plural] UK informal B2 a lot: [+ to infinitive] I've got masses to do at the ​weekend. There were masses ofpeople in ​town today.the mass of sth most of something: The mass of the ​peoplesupport the ​reforms.

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  • mass noun (PHYSICS)

[C] specialized physics the ​amount of ​matter in any ​solidobject or in any ​volume of ​liquid or ​gas: The ​acceleration of a ​bodyequals the ​forceexerted on it ​divided by ​its mass.mass number the ​totalnumber of protons and neutrons in an ​atommass defect the ​difference between the mass of a nucleus (= ​centralpart of an ​atom) and the mass of the ​separatepieces that make up the nucleus

massverb [I]

uk   us   /mæs/
(Definition of mass from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"mass" in American English

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massnoun [C]

 us   /mæs/
  • mass noun [C] (LARGE AMOUNT)

a ​largeamount or ​number: A mass of ​earth and ​graniteslid down into the ​narrowgorge. We had to ​wade through masses of ​seaweed.
  • mass noun [C] (MATTER)

[C] physics the ​amount of ​matter in any ​solidobject or in any ​volume of ​liquid or ​gasmass number physics The mass ​number is the ​totalnumber of ​protons and ​neutrons in an ​atom.mass defect physics The mass ​defect is the ​difference between the mass of a ​nucleus (= ​centralpart of an ​atom) and the mass of the ​separatepieces that make up the ​nucleus.
  • mass noun [C] (ART)

art [U] the ​outsidesize or ​shape of an ​object, or how ​big it ​appears to be

massverb [I/T]

 us   /mæs/
  • mass verb [I/T] (CREATE LARGE AMOUNT)

to come or ​bring together in ​largenumbers: [I] The ​crowd massed around the ​entrance to the ​exhibition.

massadjective [not gradable]

 us   /mæs/
involving or having an ​effect on a ​largenumber of ​people or things: weapons of mass ​destruction They ​hope the new ​movie will ​appeal to a mass ​audience.

Massnoun [C/U]

 us   /mæs/
(esp. in the ​RomanCatholicChurch) a ​religiousceremonybased on Jesus’s last ​meal with his ​disciples (= the men who ​followed him), or ​music written for the ​parts of this ​ceremony
(Definition of mass from the Cambridge Academic Content Dictionary © Cambridge University Press)

"mass" in Business English

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massadjective [before noun]

uk   us   /mæs/
having an ​effect on or involving a large ​number of ​people: There have been two decades of mass ​unemployment. mass audience/appeal A ​smallercompany could ​produce a ​breakthroughproduct with mass ​appeal.mass consumerism/consumption The ​society that we ​live in now is so geared to ​spending and mass ​consumerism. a mass ​protest/​rally/​action
See also

massnoun

uk   us   /mæs/
[U] the ​amount of matter in any ​solidobject or ​volume of ​liquid or ​gas: These ​activitieshelpstrengthen bones and ​increase their mass.
a mass of sth [S] a large ​amount of something: The ​mediacompany has enjoyed a mass of ​hype. They were ​part of the large mass of ​consumers who ​acquired a ​creditcard in the 1980s.
(Definition of mass from the Cambridge Business English Dictionary © Cambridge University Press)
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“mass” in Business English

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