This is the 8968th most frequent Japanese word.
江東
"Kōtō" refers to Kōtō City, a ward in Tokyo, Japan.
Here, '江東' is used as part of the proper noun '江東区 (Koto City)' to refer to a specific administrative region in Tokyo.
江東区は東京都の一部で、たくさんの観光名所があります。
Koto City is part of Tokyo Metropolis and has many tourist attractions.
In this sentence, '江東' refers to a broader geographic area within Tokyo, indicating its historical and cultural context.
江東地域は昔から水運が発達していました。
The Koto area has historically developed a water transportation network.
Here, '江東' represents the general scenery and characteristics of the area named Koto, used in a descriptive sense.