This is the 7343rd most frequent Japanese word.
京王
"京王" refers to "Keio," a private railway company in the Tokyo metropolitan area of Japan.
Here '京王' refers to the Keio Line, a specific transportation service.
京王線は東京で便利な鉄道です。
Keio Line is a convenient railway in Tokyo.
In this case, '京王' signifies a station associated with the Keio network.
私は京王の駅まで歩いていきました。
I walked to a Keio station.
The word '京王' is used to represent a business entity, specifically the Keio Department Store.