noun
Refers to a physical partition or divider placed inside a space, such as a room divider, shelf divider, or internal wall.
部屋の中仕切りを取り外して広く使う。
We remove the room partition to use the space more openly.
引き出しに中仕切りを入れて整理した。
I put dividers in the drawer to organize it.
仕切り is a general term for partition or dividing, while 中仕切り specifically refers to an internal partition within a larger space or container.
Compound of 中 (naka, 'inside') and 仕切り (shikiri, 'partition'), from the verb 仕切る (shikiru, 'to partition').