- to call for payment; collect: The family struggled because her father was unwilling to call in the debts owed to him.
- to call upon for consultation; ask for help: Management called in an independent engineering firm to determine the cause behind the roof collapse.
- to inform, report, or request by telephone: The electric company will reward customers with a credit if they call in their own meter readings.Your doctor can call in the prescription to your local pharmacy.
- to participate in a meeting or a radio or television program by telephone:The listeners who call in to my talk show about science ask the most intriguing questions.
- to visit: We were instructed to call in to the office later to pay and complete the formal paperwork.
- to withdraw from circulation:The country’s leader issued a proclamation calling in all gold coins and gold certificates.
- a program in which listeners or viewers phone in comments or questions to the host or a person being interviewed.
- a live telephone conversation intended for broadcasting between a program's host and a person being interviewed.
- relating to or featuring such phone calls or conversations: My call-in program about gardening airs once a week on the local public radio station.
- being or relating to a meeting, service, etc., that is accessed by telephone:The agenda will be sent out the morning of the meeting, along with all the call-in numbers needed.The grant funds a call-in hotline for low-income residents in the metro area.
- to pay a visit, esp a brief or informal one
- to demand payment of
- to take (something) out of circulation, because it is defective or no longer useful
- to summon to one's assistance
