- a tube for conveying the voice over a somewhat limited distance, as from one part of a building or ship to another.
Origin of speaking tube
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for speaking tube
"I've been looking him up," growled Jamison through the speaking-tube.
Could the pipe be used as a speaking-tube when the water was turned off?A Master of Mysteries
L. T. Meade
Tranter spoke some instructions through the speaking-tube to the chauffeur.The Crooked House
"That ought to do," he muttered as he blew down a speaking-tube.The Grell Mystery
Everything seemed to be done with a bell, a speaking-tube or a crank.Rudder Grange
Frank R. Stockton
- a tube or pipe for conveying a person's voice from one room, area, or building to another