core

adjective

UK /kɔː(r)/

1
most important, or most basic
We need to focus on our core activities.
core business (=a company’s main business activity):
Selling insurance is still our core business.
core to:
The computer network is core to our operations.
Synonyms and related words
Natural, basic and essential
basic
fundamental
natural
Synonyms and related words
Most important
main
basic
primary
1. 1a
  used for describing the most important members of a group
  2,000 students joined the core group of activists on the march.
  Synonyms and related words
  Most important
  main
  basic
  primary

phrases

core curriculum

core values/beliefs

core

adjective

US /kɔr/

1
most important, or most basic
We need to focus on our core activities.
core to:
The computer network is core to our operations.
core business (=a company’s main business activity):
Selling insurance is still our core business.
Synonyms and related words
Natural, basic and essential
basic
natural
essential
Synonyms and related words
Most important
main
basic
primary
1. 1a
  used for describing the most important members of a group
  2,000 students joined the core group of activists on the march.
  Synonyms and related words
  Most important
  main
  basic
  primary

phrases

core curriculum

core values/beliefs

core

noun countable

UK /kɔː(r)/

Word Forms

singular	core
plural	cores

1
the most important or most basic part of something
core of:
These 2,500 words form the core of the language.
at the core of something:
Financial instability lies at the core of the institute’s problems.
Synonyms and related words
Important thing or detail
feature
priority
element
1. 1a
  the members of a group who do the most work, or who support it most strongly
  core of:
  Females comprise the core of the monkeys’ social unit.
  Synonyms and related words
  Group members and describing group members
  academician
  alumnus
  arriviste
2
the part inside an object that is nearest its centre
The ball has a core of hard rubber.
core of:
These six countries are the geographical core of Western Europe.
Synonyms and related words
The central parts of objects or spaces
the middle
centre
core
1. 2a
  the central part of a fruit such as an apple, containing the seeds or pips
  Synonyms and related words
  Parts of fruit and substances in fruit
  bruising
  core
  dextrose
2. 2b
  the central part of a planet
  the Earth’s core
  Synonyms and related words
  Parts of planets and stars
  axis
  core
  corona
3. 2c
  the central part of a nuclear reactor
  Synonyms and related words
  Nuclear power
  atomic energy
  cold fusion
  core

phrases

to the core

core

noun countable

US /kɔr/

Word Forms

singular	core
plural	cores

1
the most important or most basic part of something
core of:
These 2,500 words form the core of the language.
at the core of something:
Financial instability lies at the core of the institute’s problems.
Synonyms and related words
Important thing or detail
feature
priority
element
1. 1a
  the members of a group who do the most work, or who support it most strongly
  core of:
  Females comprise the core of the monkeys’ social unit.
  Synonyms and related words
  Group members and describing group members
  academician
  alumnus
  arriviste
2
the part inside an object that is nearest its center
The ball has a core of hard rubber.
Synonyms and related words
The central parts of objects or spaces
the middle
center
core
1. 2a
  the central part of a fruit such as an apple, containing the seeds
  Synonyms and related words
  Parts of fruit and substances in fruit
  bruising
  core
  dextrose
2. 2b
  the central part of a planet
  the Earth’s core
  Synonyms and related words
  Parts of planets and stars
  axis
  core
  corona
3. 2c
  the central part of a nuclear reactor
  Synonyms and related words
  Nuclear power
  atomic energy
  cold fusion
  core

phrases

to the core

core

verb transitive

UK /kɔː(r)/

Word Forms

present tense
I/you/we/they	core
he/she/it	cores
present participle	coring
past tense	cored
past participle	cored

1
to take the centre out of a piece of fruit such as an apple
Synonyms and related words
Prepare food for cooking or eating
bake
beat
blanch

core

verb transitive

US /kɔr/

Word Forms

present tense
I/you/we/they	core
he/she/it	cores
present participle	coring
past tense	cored
past participle	cored

1
to take the center out of a piece of fruit such as an apple
Synonyms and related words
Prepare food for cooking or eating
bake
beat
blanch

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