This is the 2088th most frequent Japanese word.
向い
"向い" means "across" or "opposite."
Indicates that '向い' is used here to specify a location directly opposite to another.
彼女の家は私の家の向いです。
Her house is opposite to mine.
In this sentence, '向い側' indicates the side directly across or opposite.
向い側の席に誰か座っていますか?
Is there someone sitting in the seat opposite?
Here, '向い' describes the location of a place relative to another, meaning on the opposite side.