- a railway signal tower.
Origin of signal box
First recorded in 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for signal box
And you and Inspector Henderson are going to spend the night in the signal-box?
It is about a mile long, and the signal-box is on the Felwyn side.
Outside, Phillip threatened me with the guard's signal-box key.Highways in Hiding
George Oliver Smith
"Come, Phil," and marched out of the signal-box with flaming cheeks.The Railway Children
The name of the station, signals, and a signal-box (a half-opened match-box standing on end) can be added.Toy-Making in School and Home
Ruby Kathleen Polkinghorne and Mabel Irene Rutherford Polkinghorne
- a building containing manually operated signal levers for all the railway lines in its section
- a control point for a large area of a railway system, operated electrically and semiautomatically
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012