noun, noun which may take the genitive case particle 'no'
Refers to the inner side or interior of a physical object, space, or container. Often contrasted with 外側 (outside).
Antonyms: 外側
箱の内側に名前が書いてある。
The name is written on the inside of the box.
内側のポケットに鍵を入れた。
I put the key in the inner pocket.