core

US /kɔr, kor/

UK /kɔ:(r)/

A2
v.t.Transitive VerbTo take out the central section of a fruit
Core the potatoes, fill them with bacon, and then bake for 30 minutes
n. (c./u.)Noun (Countable/Uncountable)Important central part of something
The core of the problem is his selfish personality
n. (c./u.)Noun (Countable/Uncountable)The hard central part of certain fruits, containing the seeds.
She ate the apple but left the core.
adj.AdjectiveFundamental; essential.
Maths and English are core subjects in the curriculum.
n. (c./u.)Noun (Countable/Uncountable)The central part of a nuclear reactor where the nuclear reactions take place.
The reactor core needs to be cooled down.
n. (c./u.)Noun (Countable/Uncountable)An independent processing unit in a CPU.
This processor has four cores.
n. (c./u.)Noun (Countable/Uncountable)A cylindrical sample of rock or soil obtained by drilling.
Geologists study core samples to learn about the Earth's history.
n. (c./u.)Noun (Countable/Uncountable)The muscles of the abdomen and back.
Strengthening your core muscles can improve your posture.
n. (c./u.)Noun (Countable/Uncountable)A required set of courses in a curriculum.
Maths, Science, and English are core subjects in the curriculum.

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