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mass

mass

71 2.7
A large collection of things often including people
  • noun
  • /mæs/
translation icon : masa
  • A mass of circumstantial evidence.
  • mass media
  • mass production
  • mass-produced goods

Examples

  • A soldier leans toward them and points to the mass of marching men.

  • There is now little doubt that this mass meeting will take place.

  • There must be tens of thousands of them in that mass.

  • We talk about them as an undifferentiated mass of people.

  • Together they started back across the plain through masses of huddled people and scampering children.

    Fiction book (1992)
  • From behind them, he could hear the bewildered murmur from the mass of humanity imprisoned inside.

    Fiction book (1994)
  • The cobbled crosswalk filled with a pedestrian mass of sweating, sun-dazed Finns.

    Fiction book (1996)
  • Her curls had kinked into an orangey, frizzy mass, accenting the freckles on her face.

    Fiction book (1993)
  • There must be tens of thousands of them in that mass of people at the concert.

  • The students gathered in a mass in the school yard during the fire drill.

Synonyms

lot
vsmass
1.0

A large amount of something

is a general noun for a large collection not only used with of
group
vsmass
1.0

A number of people or things seen as one unit

is specifically about largeness and accumulation rather than mere unit classification
plenty
vsmass
1.0

A large amount that is more than needed

is primarily about a large collected amount representing many items rather than sufficiency
crowd
vsmass
1.0

Many people or things are close together in one place

is a broader term for large collections beyond only close physical gatherings
pile
vsmass
426 1.9

A heap of things put together

denotes any large collection but without implying a messy physical heap
stack
vsmass
182 1.0

A pile of things placed one on top of another

is a general word for accumulation without implying neat vertical arrangement
heap
vsmass
  • Informal
54 1.4

A large amount of things often in a messy pile

is a general collective word not focused on messy physical piling
slew
vsmass
  • Informal
46 5.7

A large number of things or people

refers to a large collection seen as a single whole
multitude
vsmass
15 5.6

A large group of ordinary people in a society

is a general word for large collections of people or things not only people
raft
vsmass
  • Informal
14 5.9

A large number of things or people

is the neutral general word for a large collection across contexts
aggregation
vsmass
11 6.1

A group of things joined together as one whole

is a basic term for a large group without stressing collection process
grouping
vsmass
10 2.7

People or things that form one unit

is focused on a large accumulation rather than the act of arranging items
7 7.4

A group of different things gathered in one place

is a neutral word for any large collection not necessarily mixed
passel
vsmass
  • Archaic
4 9.5

A large group of people or things

acts as a wider neutral term rather than an informal expression
masses
vsmass
2 2.3

Ordinary people in a society who are not rich or powerful

is a neutral term for any large group not limited to people
agglomeration
vsmass
1 8.6

A group of things or people gathered together

is the common general word for a large accumulation not technical
cumulation
vsmass
8.0

A pile of things gathered together

is a simple collective noun rather than highlighting gradual buildup

Antonyms

2.3

A single person or animal regarded separately from a group

29 4.4

A situation where there is not enough of something people need

Compounds

110 4.3

Great damage to a wide area often caused by war or a big disaster

A thing that can kill or injure many people, like nuclear, chemical and biological devices

38 6.7

Killing many people on purpose at the same time or in a short time

33 7.7

A person who kills many people at one time

19 5.6

Enough people or support for something to start and keep going

12 2.8

A large area of land that is not separated by water

Making large numbers of the same product on an assembly line

11 6.1

Many people feel strong fear and act in a panicked, irrational way

center of mass
  • Specialized
5 5.7

Point in an object where we think its mass is concentrated for balance and movement

body mass index
  • Specialized
4 3.2

A number that shows if a person's weight is healthy for their height

mass spec
  • Jargon
4 3.8

A lab test that finds which chemicals are in a sample

mass spectrometer
  • Specialized
3 5.5

A machine that measures the masses of charged particles from a sample

air mass
  • Specialized
3 3.4

A large area of air with about the same temperature, humidity, and pressure

3 3.9

A set of shared ideas, styles, and entertainment spread by TV and the internet

2 3.4

A large public gathering where people meet to support or protest a cause

critical mass
  • Specialized
2 6.2

The smallest amount of nuclear material needed to start and keep a chain reaction

1 8.9

A solemn Catholic church service with full ceremony, music, and incense

atomic mass
  • Specialized
1 3.6

A number that tells how heavy one atom of an element is in atomic mass units

conservation of mass
  • Specialized
1 4.0

The total mass in a system that does not gain or lose matter stays the same over time

1 3.8

A way to send information to many people, like TV or radio

ice mass
  • Specialized
1 3.3

A large area of ice that forms part of a glacier or ice sheet

A computer attack that can damage systems and harm many people

1 4.1

Matter stays the same in a closed system

1 9.2

A priest leads a short Roman Catholic church service with little or no singing

mass energy
  • Specialized
1 7.9

Energy an object has because of its mass, as in E = mc²

1 8.5

A card sent to someone who lost a loved one saying a Mass will be said for them

mass number
  • Specialized
1 4.9

The total number of protons and neutrons in an atom's nucleus

inertial mass
  • Specialized
1 8.6

A measure of how hard it is to change an object's motion when a force pushes it

rest mass
  • Specialized
1 7.4

The amount of matter in an object measured when it is not moving, not how heavy it feels

point mass
  • Specialized
1 7.9

An object with mass but no size used to make physics problems easier

6.1

A formal church service with set ceremonies and a serious mood

atomic mass unit
  • Specialized
3.9

A small unit for mass used to measure atoms and molecules

law of mass action
  • Specialized
6.0

The speed of a chemical reaction depends on the amounts of the substances that react

A large public discussion with many people about important issues

mass defect
  • Specialized
7.4

The mass difference between a nucleus inside an atom and the total mass of its protons and neutrons

mass deficiency
  • Specialized
7.7

Amount of mass missing when protons and neutrons join and release energy

mass action
  • Specialized
8.8

Large areas of the brain work together for complex tasks

mass spectrum
  • Specialized
6.8

A graph that shows how many charged particles have each mass

mass unit
  • Specialized
3.0

A unit used to measure how heavy something is, like a gram or kilogram

mass noun
  • Specialized
5.9

A word that names something you cannot count and usually has no plural form

A system of underground or above ground trains that carries many people quickly

mass spectrograph
  • Specialized
4.9

A machine that separates tiny charged parts of atoms by mass and shows them on a graph

mass spectroscopy
  • Specialized
6.0

A method that measures the mass of tiny charged particles

mass-action principle
  • Specialized
9.8

A theory that large areas of the brain work together for complex tasks

8.1

The idea that mass can turn into energy and energy can turn into mass

gravitational mass
  • Specialized
7.9

A measure of how strongly an object pulls other objects by gravity

relative atomic mass
  • Specialized
5.3

The mass of an atom compared with one twelfth of a carbon-12 atom

5.6

The mass of all the atoms in one molecule compared with one twelfth of a carbon-12 atom

relativistic mass
  • Specialized
9.9

The mass a moving object seems to have as its speed gets near the speed of light

pointlike mass
  • Specialized
8.6

A mass with no size that physicists treat as if at a single point

How Many

mass
71 2.7
multitude
38 4.4
throng
28 5.9
crowd
1.0
pair
889 1.0

Surface Forms

mass singular
masses plural

Etymology

Mass comes from the old Latin word massa, which means 'lump' or 'clump', and you can see the same root in massive. Picture a large pile or a big amount of things gathered together. So, a mass is a large group or quantity of people or things.