Citizens Band

US: /ˈsɪtəzənz ˌbænd/

WordReference Random House Unabridged Dictionary of American English © 2026

Cit′izens Band′, 

1. Radio and Television a two-way radio service (Cit′izens Ra′dio Serv′ice) licensed by the FCC to a U.S. citizen for short-distance personal or business communications between fixed or mobile stations. Abbr.: CB

• 1960–65

WordReference Random House Learner's Dictionary of American English © 2026

cit•i•zens band /ˈsɪtəzənz ˌbænd/  n. [countable]

1. Radio and Television [often: Citizens Band* often used before another noun] a band of radio frequencies used for short-distance private communications:
   had citizens band radios and communicated with each other along the highway.
   Abbr.: CB

Collins Concise English Dictionary © HarperCollins Publishers::

Citizens' Band noun

1. a range of radio frequencies assigned officially for use by the public for private communication
   Abbreviation: CB