a radio or television station that originates most of a network’s broadcasting.
[kee-stohn] /ˈkiˌstoʊn/ noun 1. the wedge-shaped piece at the summit of an arch, regarded as holding the other pieces in place. 2. something on which associated things depend: the keystone of one’s philosophy. 3. Also called keystone sack. Baseball Slang. (def 1). /ˈkiːˌstəʊn/ noun 1. Also called headstone, quoin. the central stone at the top […]
noun 1. a short film of the silent era, often featuring the Keystone Kops. 2. Slang. any situation or incident characterized by farcical bungling, misunderstandings, etc.
noun 1. a reinforced-concrete joist with sloping sides and the top wider than the bottom.