mass definition, meaning - what is mass in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “mass”

See all translations

mass

adjective [before noun] uk   us   /mæs/
C1 having an effect on or involving a large number of people or forming a large amount: weapons of mass destruction a mass murderer mass starvation Opposition groups plan to stage mass demonstrations all over the country.
More examples

mass

noun uk   us   /mæs/

mass noun (LARGE AMOUNT)

B2 [S] a large amount of something that has no particular shape or arrangement: The explosion reduced the church to a mass of rubble. The forest is a mass of colour in autumn.masses [plural] UK informal B2 a lot: [+ to infinitive] I've got masses to do at the weekend. There were masses of people in town today.the mass of sth most of something: The mass of the people support the reforms.
More examples

mass noun (SOLID LUMP)

[C] a solid lump with no clear shape: The sauce was now a sticky mass at the bottom of the pan.

mass noun (ORDINARY PEOPLE)

the masses the ordinary people who form the largest group in a society: He was popular with the rich but failed to win the support of the masses.

mass noun (PHYSICS)

[C] specialized physics the amount of matter in any solid object or in any volume of liquid or gas: The acceleration of a body equals the force exerted on it divided by its mass.mass number the total number of protons and neutrons in an atommass defect the difference between the mass of a nucleus (= central part of an atom) and the mass of the separate pieces that make up the nucleus

mass noun (RELIGIOUS CEREMONY )

[C or U] (also Mass) a religious ceremony in some Christian Churches based on Jesus' last meal with his disciples, or music written for parts of this ceremony: to go to Mass
See also

mass

verb [I] uk   us   /mæs/
to come together in large numbers: Thousands of troops have massed along the border in preparation for an invasion.
(Definition of mass from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of mass?
Add Cambridge dictionaries to your browser to your website

Definitions of “mass” in other dictionaries

Word of the Day

gale-force

(of winds) very strong

Word of the Day

They sometimes go here and they never go there: using adverbs of frequency

by Liz Walter,
April 29, 2015
Sometimes, always, often, never: these are some of the most common words in English.  Unfortunately, they are also some of the words that cause the most problems for students. Many of my students put them in the wrong place, often because that’s where they go in their own languages. They say things

Read More 

Evel abbreviation

May 04, 2015
English votes for English laws; the idea that only English (as opposed to Scottish, Welsh or Irish) MPs should be allowed to vote for laws that affect only England Yet these are the two principal constitutional proposals that have come from the Conservative party in its kneejerk response to Ukip’s English nationalism and

Read More