高こう速そく自じ動どう車しゃ国こく道どうMeaningsNoun1. national highway; national expressway; national motorwayKanji used高high速fast自self動move車vehicle国country道roadwayComposed of高こう速そくhigh-speed; rapid; express; highway; freeway; expressway; motorwayNa-adjective自じ動どう車しゃcar; automobile; motorcar; motor vehicle; autoNoun国こく道どうnational road; national highwayNoun