mass

adjectiveonly before noun

UK /mæs/

1
involving or affecting a large number of people
weapons of mass destruction
the problem of mass unemployment
Synonyms and related words
Words used to describe large amounts and quantities
substantial
considerable
extensive
Collocates
Nouns frequently used with mass
▪ destruction, exodus, extinction, hysteria, killings, movement, murder, protest, unemployment

mass

adjectiveonly before noun

US /mæs/

1
involving or affecting a large number of people
weapons of mass destruction
the problem of mass unemployment
Synonyms and related words
Words used to describe large amounts and quantities
substantial
considerable
extensive
Collocates
Nouns frequently used with mass
▪ destruction, exodus, extinction, hysteria, killings, movement, murder, protest, unemployment

mass

noun

UK /mæs/

Word Forms

singular	mass
plural	masses

1
countable a large quantity or number
mass of:
We need to turn this mass of evidence into a coherent argument.
There’s a mass of competing anti-virus programs you can choose from.
Synonyms and related words
Large quantities or amounts
hoard
tsunami
wall
1. 1a
  
  masses
  plural informala lot
  mass of:
  Masses of people attended the meeting.
  Synonyms and related words
  Large quantities or amounts
  hoard
  tsunami
  wall
2
countable a lump or amount of a substance that does not have a clear or definite shape
The vegetables had turned into a sticky mass at the bottom of the pan.
mass of:
All that was left of the car was a mass of twisted metal.
a mass of dark cloud
Synonyms and related words
Indistinct shapes
mass
lump
blur
3
singular a large crowd of people
mass of:
A mass of people followed the procession.
a seething mass (=moving in all directions):
a seething mass of protesters
Synonyms and related words
General words for groups of people
age group
array
assemblage
1. 3a
  
  the masses
  plural ordinary people who are not rich or famous. This word usually shows that you think ordinary people are not important or intelligent
  It is entertainment that will appeal to the masses.
  Synonyms and related words
  The ordinary people or person
  the people
  the general public
  the little people
4

mass
or
Mass
countable/uncountable the main religious ceremony of the Roman Catholic church
They go to mass every Sunday.
Synonyms and related words
Christian ceremonies, services, prayers and practices
amen
anthem
baptise
1. 4a
  countable musica piece of music written for some of the prayers in the mass
  Bach’s Mass in B Minor
  Synonyms and related words
  Pieces of music
  adagio
  air
  allegro
5
uncountable chemistrythe amount of matter that something contains
Synonyms and related words
General words for numbers, amounts and quantities
accumulation
allocation
allowance
See alsocritical mass

phrases

be a mass of

the mass of something

mass

noun

US /mæs/

Word Forms

singular	mass
plural	masses

1
countable a large quantity or number
mass of:
We need to turn this mass of evidence into a coherent argument.
There’s a mass of competing anti-virus programs you can choose from.
Synonyms and related words
Large quantities or amounts
hoard
wall
windfall
1. 1a
  
  masses
  plural mainly Britishinformala lot
  mass of:
  Masses of people attended the meeting.
  Synonyms and related words
  Large quantities or amounts
  hoard
  wall
  windfall
2
countable a lump or amount of a substance that does not have a clear or definite shape
The vegetables had turned into a sticky mass at the bottom of the pan.
mass of:
All that was left of the car was a mass of twisted metal.
a mass of dark cloud
Synonyms and related words
Indistinct shapes
mass
lump
blur
3
singular a large crowd of people
a seething mass (=moving in all directions):
a seething mass of protesters
mass of:
A mass of people followed the procession.
Synonyms and related words
General words for groups of people
age group
array
assemblage
1. 3a
  
  the masses
  plural ordinary people who are not rich or famous. This word usually shows that you think ordinary people are not important or intelligent
  It is entertainment that will appeal to the masses.
  Synonyms and related words
  The ordinary people or person
  the people
  the general public
  the little people
4

mass
or
Mass
countable/uncountable the main religious ceremony of the Roman Catholic church
They go to mass every Sunday.
Synonyms and related words
Christian ceremonies, services, prayers and practices
amen
anthem
baptise
1. 4a
  countable musica piece of music written for some of the prayers in the mass
  Bach’s Mass in B Minor
  Synonyms and related words
  Pieces of music
  adagio
  air
  allegro
5
uncountable chemistrythe amount of matter that something contains
Synonyms and related words
General words for numbers, amounts and quantities
accumulation
allocation
allowance
See alsocritical mass

phrases

be a mass of

the mass of something

mass

verb intransitive

UK /mæs/

Word Forms

present tense
I/you/we/they	mass
he/she/it	masses
present participle	massing
past tense	massed
past participle	massed

1
to come together and form a large group
Troops are massing along the southern border.
Synonyms and related words
To move closer together in a group
assemble
close up
converge
Synonyms and related words
To meet together as a group
meet
gather
get together
1. 1a
  transitive to bring people together and make them form a large group
  More than 5,000 police were massed within two days.
  Synonyms and related words
  To move closer together in a group
  assemble
  close up
  converge

mass

verb intransitive

US /mæs/

Word Forms

present tense
I/you/we/they	mass
he/she/it	masses
present participle	massing
past tense	massed
past participle	massed

1
to come together and form a large group
Troops are massing along the southern border.
Synonyms and related words
To move closer together in a group
assemble
close up
converge
Synonyms and related words
To meet together as a group
meet
gather
get together
1. 1a
  transitive to bring people together and make them form a large group
  More than 5,000 police were massed within two days.
  Synonyms and related words
  To move closer together in a group
  assemble
  close up
  converge

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