Pronunciation: (kōl),[key] —n. 1. a black or dark-brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other combustible substance.
3. charcoal (def. 1).
4. heap coals of fire on someone's head, to repay evil with good in order to make one's enemy repent.
5. rake, haul, drag, call, or take over the coals, to reprimand; scold: They were raked over the coals for turning out slipshod work.
—v.t. 1. to burn to coal or charcoal.
2. to provide with coal.