noun
opposite side; other side; other party
Refers to the side directly across from a reference point, such as a street, table, or river. Can also refer to the opposing person or group in a situation.
向かい側の家には誰が住んでいますか。
Who lives in the house on the opposite side?
交渉では、向かい側の主張をよく聞くことが大切だ。
In negotiations, it's important to listen carefully to the other party's arguments.