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CB

1 ENTRIES FOUND:
CB /ˌsiːˈbiː/ noun
CB
/ˌsiːˈbiː/
noun
Britannica Dictionary definition of CB
[noncount]
: a range of radio frequencies that people and especially truck drivers use to talk to each other over short distances often while driving often used before another noun
also : a radio that uses this range of frequencies
CB is an abbreviation of “citizens band.”