This is the 8967th most frequent Japanese word.
江戸川
"江戸川" (Edogawa) refers to the Edogawa River in Japan or can signify areas named after it.
The word '江戸川' here is used as the name of a specific river, referring to the geographical feature.
江戸川は日本の川の一つです。
Edo River is one of the rivers in Japan.
In this sentence, '江戸川' is part of the name of a district in Tokyo, representing a location.
彼は江戸川区に住んでいます。
He lives in Edogawa City.
'江戸川' is used in a locational sense to describe proximity to a geographical feature.