高こう速そく鉄てつ道どうMeaningsNoun1. high-speed rail; rapid (rail) transitKanji used高high速fast鉄iron道roadwayComposed of高こう速そくhigh-speed; rapid; express; highway; freeway; expressway; motorwayNa-adjective鉄てつ道どうrailroad; railway; rail transportNoun