front side; anterior
Refers to the front-facing side of an object or surface. 前側 is a straightforward compound of 前 (front) and 側 (side).
建物の前側に駐車場がある。
There is a parking lot on the front side of the building.
この書類の前側に署名してください。
Please sign on the front side of this document.
Compound of 前 (まえ, 'front') and 側 (がわ, 'side').