/ Dictionary / Index S signalman: Meaning and Definition of Find definitions for: sig•nal•man Pronunciation: (sig'nl-mun), [key] — pl. -men. a person whose occupation or duty is signaling, as on a railroad or in the army. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: signalman (Thesaurus) signally signalment Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language