こくてつ 国鉄 Common word LinksSentence search for 国鉄Sentence search for こくてつKanji details for 国 and 鉄Edit in JMdict Noun1. national railwayAbbreviation, See also 国有鉄道Noun2. Japan National Railways (1949-1987)Abbreviation, Historical term, See also 日本国有鉄道 Discussions Log in to talk about this word.