Crossword clues for N. Y. subway:IRTN. Y. subway line.IRTN. Y. subway system: Abbr.IRTN. Y. subway line: Abbr.IRTN. Y. subwayPARSONSEngineer of N. Y. C. subways (1859–1932).BRTOne of N. Y.'s subways.IRTSubway in N. Y. City Transit System.BMTPart of the N. Y. C. subway.IRTN. Y. C. subway, for short.IRTOldest subway system in N. Y. C.INDPart of N. Y. C.'s subway system.IRTPart of N. Y. C.'s subway system.IRTSubway system of N. Y. C.