/ ˈhɒtlaɪn; NAmE ˈhɑːt-/ noun
1.
a special telephone line that people can use in order to get information or to talk about sth
2.
a direct telephone line between the heads of government in different countries
HOTLINE
Meaning of HOTLINE in English
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005