coal fire

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Also see: fire

Concise Oxford English Dictionary © 2008 Oxford University Press:
coal/kəʊl/

▶noun a combustible black rock consisting mainly of carbonized plant matter and used as fuel.

■ Brit. a piece of coal.

▶verb provide with or extract coal.

– phrases
coals to Newcastle something supplied to a place where it is already plentiful.
haul (also N. Amer. rake) someone over the coals reprimand someone severely.

– derivatives
coaly adjective.

– origin OE col (in the senses ‘glowing ember’ and ‘charred remnant’), of Gmc origin.