1. a return telephone call made in response to a previous call or message
2. a second audition or interview for a job, especially in entertainment
Usage: entertainment industry
3. a function or procedure that is passed as an argument to another function and executed at a later time
Usage: computing

Examples

• The doctor’s office promised callbacks within 24 hours.
• She received three callbacks after her initial theater audition.
• The actress was nervous about her callback for the lead role.
• The programmer used callbacks to handle asynchronous operations.
• JavaScript relies heavily on callbacks for event handling.
• The company issued callbacks for all defective car parts.
• Customers were notified about the product callbacks via email.
• He waited by the phone all day for callbacks from potential employers.