partition

Divide into parts, pieces, or sections.

“The Arab peninsula was partitioned by the British”

Separate or apportion into sections.

“partition a room off”

The act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart.

A vertical structure that divides or separates (as a wall divides one room from another).

(anatomy) a structure that separates areas in an organism.

(computer science) the part of a hard disk that is dedicated to a particular operating system or application and accessed as a single unit.