(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.

The central part of a fruit, containing the kernels or seeds. / The heart or inner part of a physical thing. / The anatomical core, muscles which bridge abdomen and thorax.

Forming the most important or essential part.

To remove the core of an apple or other fruit. / To cut or drill through the core of (something). / To extract a sample with a drill.

(obsolete) A body of individuals; an assemblage.

A miner's underground working time or shift.

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

Applied to various (often specialised and underground) genres of music and subcultures.

Acronym of Congress of Racial Equality. / Acronym of Center for Operations Research and Econometrics. / Acronym of Consortium for Oceanographic Research and Education.

Acronym of corporate responsibility.