- a direct telecommunications link, as a telephone line or Teletype circuit, enabling immediate communication between heads of state in an international crisis: the hot line between Washington and Moscow.
- a telephone service enabling people to talk confidentially with someone about a personal problem or crisis.
- a telephone line providing customers or clients with direct access to a company or professional service.
Origin of hot line
Idioms and Phrases with hot line
A telephone line that gives quick and direct access to a source of information or help. For example, Our state has an AIDS hot line in every county. This term was originally (and is still) used for a direct link between heads of government for use during a crisis, but was quickly extended to wider applications. [1950s]