From Longman Dictionary of Contemporary Englishsignalmansig‧nal‧man /ˈsɪɡnəlmən/ noun (plural signalmen /-mən/) [countable] 1 especially British EnglishTTT someone whose job is to control railway signals2 PMA (also signaller British English)PMN a member of the army or navy who is trained to send and receive signals
Examples from the Corpus
signalman• After his demobilisation from the Navy he was accepted by the railway authorities to train as a signalman.• Never again would a signalman give the signal that all was clear.• A signalman passed by, motioning with his green flag.• A factor in this was excessive overtime with many signalmen working 7 days a week for a month.• All the same, signalmen can be a fund of unexpected tales and it is always interesting to hear their stories.• The narrator, returning to the box shortly afterwards, finds that the signalman has been run over by a train.• The signalman in his isolated box tells the narrator of an apparition he has now seen three times.• The conditions under which signalmen had to work can only be imagined. 