This is the 9797th most frequent Japanese word.
裏側
The reverse side; the back; the underside.
In this sentence, '裏側' (uragawa) is used to refer to the concealed or opposite side of the mirror, communicating the idea of something being hidden or not immediately visible.
鏡の裏側には秘密が隠されています。
There are secrets hidden behind the mirror.
Here, '裏側' (uragawa) is utilized to indicate the rear part of the box, implying the physical opposite side which might hold important details or items.
箱の裏側を調べてください。
Please check the back side of the box.
In this context, '裏側' (uragawa) describes the inner layer or reverse side of the garment, highlighting the texture or material that is not visible externally.