1. A direct telephone line between two officials
   "The presidents used the hotline to discuss the crisis"
    
2. A telephone line that provides direct and prompt information or advice to the caller in relation to a specific subject
   "The crisis centre set up a hotline for people affected by the natural disaster"

Derived forms: hotlines

Type of: line, phone line, service, subscriber line, telephone circuit, telephone line

Encyclopedia: Hotline