• (RP) IPA: /kɔː/
• (America) IPA: /kɔɹ/
• (rhotic, horse-hoarse) IPA: /ko(ː)ɹ/
• (nonrhotic, horse-hoarse) IPA: /koə/

core

1. The central part of fruit, containing the kernels or seeds.

   the core of an apple or quince

2. The heart or inner part of a physical thing
3. The center or inner part of a space or area

   the core of a square

4. The most important part of a thing; the essence.

   the core of a subject

5. (engineering) The portion of a mold that creates an internal cavity within a casting or that makes a hole in or through a casting.
6. The bony process which forms the central axis of the horns in many animals.
7. (computing) Magnetic data storage.
8. (computer hardware) An individual computer processor, in the sense when several processors (called cores or CPU cores) are plugged together in one single integrated circuit to work as one (called multi-core processor).

   I wanted to play a particular computer game, which required I buy a new computer, so while the game said it needed at least a dual-core processor, I wanted my computer to be a bit ahead of the curve, so I bought a quad-core.

9. (engineering) The material between surface materials in a structured composite sandwich material.

   a floor panel with a Nomex honeycomb core

10. The inner part of a nuclear reactor in which the nuclear reaction takes place.
11. A piece of soft iron, inside the windings of an electromagnet, that channels the magnetic field.
12. A disorder of sheep caused by worms in the liver.
13. A cylindrical sample of rock or other materials obtained by core drilling.
14. (medicine) A tiny sample of organic material obtained by means of a fine-needle biopsy.
15. (biochemistry) The central part of a protein structure consisting in mostly hydrophobic aminoacids.
16. (game theory) The set of feasible allocations that cannot be improved upon by a subset (a coalition) of the economy's agents.
17. (printing) A hollow cylindrical piece of cardboard around which a web of paper or plastic is winded.
18. (physics) An atomic nucleus plus inner electrons (i.e. except valence electrons).

• (The most important part of a thing) crux, gist; See also Thesaurus:gist

• French: trognon, noyau, cœur
• German: Kerngehäuse
• Italian: nocciolo
• Portuguese: caroço
• Russian: ядро́
• Spanish: corazón

• French: cœur
• German: Kern
• Italian: nocciolo
• Portuguese: cerne, miolo
• Russian: сердцеви́на

• French: centre, cœur
• German: Kern
• Italian: anima
• Portuguese: cerne, núcleo
• Russian: ядро́

• French: cœur
• German: Kern
• Italian: essenza
• Portuguese: âmago, cerne, coração, essência
• Russian: суть
• Spanish: esencia

• Russian: сердцеви́на

• German: Kernspeicher

• French: cœur
• German: Kern
• Portuguese: core, núcleo
• Russian: ядро́
• Spanish: núcleo

• Italian: caparra

• French: carotte
• Russian: керн

• French: mandrin

• Russian: атомный остов

core (cores, present participle coring; past and past participle cored)

1. To remove the core of an apple or other fruit.
2. To extract a sample with a drill.

• Spanish: descorazonar

core (plural cores)

1. (obsolete) A body of individuals; an assemblage.
   • 1622, Francis, Lord Verulam, Viscount St. Alban [i.e. Francis Bacon], The Historie of the Raigne of King Henry the Seventh, […], London: Printed by W[illiam] Stansby for Matthew Lownes, and William Barret, OCLC 1086746628 ↗:

     He was in a core of people.

core (plural cores)

1. A miner's underground working time or shift.

• Italian: turno

core (plural cores)

1. (historical units of measure) Alternative form of cor#English|cor: a former Hebrew and Phoenician unit of volume.

core (plural cores)

1. (automotive, machinery, aviation, marine) A deposit paid by the purchaser of a rebuilt part, to be refunded on return of a used, rebuildable part, or the returned rebuildable part itself.

1. Acronym of corporate responsibility

1. Acronym of Congress of Racial Equality
2. Acronym of Center for Operations Research and Econometrics
3. Acronym of Consortium for Oceanographic Research and Education
4. Acronym of Council on Rehabilitation Education
5. Acronym of Computing Research and Education Association

1. (Greek god) The birth name of Persephone/Proserpina, the queen of the Underworld/Hades, and goddess of the seasons and of vegetation. She is the daughter of Zeus and Demeter, and the wife of Hades.
2. A female given name