What does 西側 mean?
西側 is a Japanese noun meaning “west side; west bank” in English. It is written as 西側 in kanji, にしがわ in hiragana, and nishigawa in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
この公園の西側に近いところは、道路の騒音も大きいが、奥にはいるともう聞こえない。
Near the west side of the park there's a lot of noise from the road, but when you go into the park you can't hear it any more.