- a direct telecommunications link enabling immediate communication between heads of state in an international crisis: the hotline between Washington and Moscow.
- a telephone service enabling people to talk confidentially with someone about a personal problem or crisis: The protective services system is anchored by a 24-hour, 7-days-a-week emergency hotline.
- a telephone line providing customers or clients with direct access to a company or professional service: If you need assistance, feel free to chat with us through our online auto parts website or give our hotline a call.
- a radio program to which listeners can phone in comments or questions: The radio hotline features advice and insight from a range of bank spokespeople during tax season.
- of or relating to a radio program to which listeners can phone in comments or questions.
- a direct telephone, teletype, or other communications link between heads of government, for emergency use
- any such direct line kept for urgent use
