Definitions

1. noun

A CB (citizens band) radio, a type of amateur radio used for communication, especially for short-range communication between vehicles or in areas without cellular coverage.

“The truck driver used the CB to warn other drivers about an upcoming traffic jam.”

2. noun

A call-back, a request to return a call.

“The customer service representative said they would send a CB to the customer’s phone number to discuss the issue further.”

3. verb

To call back, to return a call.

“Can you CB me when you have a chance to talk?”

4. verb

To cancel, to void.

“The store said they would cb the order due to the item being out of stock.”