This is the 3359th most frequent Japanese word.
最寄り
Nearest; closest.
In this sentence, '最寄り' is used to describe the closest or most conveniently located station relative to the speaker's starting location.
最寄りの駅まで歩きました。
I walked to the nearest station.
Here, '最寄り' is employed to signify the supermarket that is geographically or logistically closest within the vicinity.
この地域で最寄りのスーパーはどこですか？
Where is the nearest supermarket in this area?
In this instance, '最寄り' indicates the park which is situated closest to the referenced location, namely the school.