A gentleman's dress coat.

(simile) Completely black.

Alternative spelling of cobnut

A mine from which coal ore or coal minerals are mined.

(of travel) That takes place from one coast to another (especially of a continent or large nation) / (of a broadcast) That is relayed across a continent or large nation

Any region containing deposits of coal that may be mined.

(US) A room intended for holding guests' coats and other heavy outerwear, as at a theater; a cloakroom.

(regional) kerosene or any unspecified lower grade derivative of crude petroleum

plural of coat-hanger an alternative spelling of coat hanger

(medicine) radiation therapy that uses radioactive cobalt-60 as a source