noun. In lumbering, one who transmits orders from the foreman of a yarding-crew to the engineer of the yarding-donkey.

noun. One whose duty it is to convey intelligence, notice, warning, or the like by means of signals; a signaler; in nautical or military service, one who makes signals and reads or interprets the signals received; an expert in signals.

noun. A man whose business is to manage or display signals; especially, one employed in setting the signals by which railroad trains are run or warned.

noun. Somebody employed to operate the signals and points of a railway.

noun. A member of the armed forces responsible for signalling.

noun. a railroad employee in charge of signals and point in a railroad yard

"In total, he called the signalman three times requesting help, and another London Underground member of staff, Dave Matthews, had called once, but the line was cut off."

railroad man  railroader  railway man  railwayman  signaler  

Ponce  bagginess  baluster  bellboy  carder  

signaller