京けい成せいけいせいFreq.FrequencyTop 20,000Meanings1nounKeisei (train line Tokyo-Narita)company nameProper noun referring to the Keisei Electric Railway company and its train lines, especially the Keisei Main Line connecting Tokyo and Narita.京けい成せいで成なり田た空くう港こうまで行いきます。I'll go to Narita Airport by Keisei.