Definitions

1. noun

a telephone service that allows people to call in and get free advice or help, especially about a particular problem or situation

“The charity has a hotline for victims of domestic abuse.”

2. noun

a direct communication channel, especially a telephone line, used for emergency or urgent communication

“The emergency services have a hotline for reporting crimes in progress.”

3. verb

to establish or set up a direct communication channel, especially a telephone line, for emergency or urgent communication

“The police will hotline the suspect’s phone to track his location.”