鉄道

(1)line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight

(2)乗客または貨物輸送をする電車の輸送のシステムの操作に関与する商業的な組織である路線

(3)short for railway; "he traveled by rail"; "he was concerned with rail safety"

(4)鉄道（railway）の省略

(5)a line of track providing a runway for wheels; "he walked along the railroad track"

(6)車輪の走路を提供している鉄道の線路

(1)