This is the 8805th most frequent Japanese word.
東松山
Higashimatsuyama: A city in Saitama Prefecture, Japan.
In this sentence, '東松山' is used as a proper noun referring to the name of a station within a geographic location.
私は東松山駅を訪れました。
I visited Higashimatsuyama Station.
Here, '東松山市' represents a specific city, utilizing '市' (shi) as the suffix that denotes a city in Japan.
東松山市は美しい風景で知られています。
Higashimatsuyama City is known for its beautiful scenery.
The term '東松山' in this case is used to indicate a general area or locality where someone resides, connecting through the verb '住んでいます' (lives).