Word forms: cores
1. countable noun [oft n N] The core of a fruit is the central part of it. It contains seeds or pips. ⇒ Someone threw an apple core. ⇒ Peel the pears and remove the cores. 2. verb
If you core a fruit, you remove its core. [V n] ⇒ ...machines for peeling and coring apples.
3. countable noun [usu with poss]
The core of an object, building, or city is the central part of it. ⇒ ...the earth's core. [+ of] ⇒ The core of the city is a series of ancient squares.
4. singular noun The core of something such as a problem or an issue is the part of it that has to be understood or accepted before the whole thing can be understood or dealt with. [+ of] ⇒ ...the ability to get straight to the core of a problem. ⇒ The notion that blacks comprise a problem is at the core of racist reasoning. 5. singular noun [N n] A core team or a core group is a group of people who do the main part of a job or piece of work. Other people may also help, but only for limited periods of time. ⇒ We already have our core team in place. [+ of] ⇒ A core of about six staff would continue with the project. 6. singular noun [usu N n] In a school or college, core subjects are a group of subjects that have to be studied. ⇒ The core subjects are English, mathematics and science. ⇒ I'm not opposed to a core curriculum in principle, but I think requiring a foreign language is unrealistic. [+ of] ⇒ ...a core of nine academic subjects. 7. singular noun [usu N n] The core businesses or the core activities of a company or organization are their most important ones. ⇒ The core activities of local authorities were reorganised. ⇒ The group plans to concentrate on six core businesses. [+ of] ⇒ However, the main core of the company performed outstandingly.
COBUILD Advanced English Dictionary. Copyright © Harper Collins Publishers