hotliner

[hot-lahy-ner]

noun

a person who speaks to callers on a telephone hot line.
Also hot-lin·er. Chiefly Canadian. a radio broadcaster who accepts calls on the air from individuals using a telephone hot line set up for that purpose.

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Origin of hotliner

First recorded in 1970–75; hot line + -er¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018