dɪˈvaɪdə(ɹ) dɪˈvɪʒən pɑɹˈtɪʃən pɑɹˈtɪʃən zoʊn zəʊn 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 divide into parts, pieces, or sections The Arab peninsula was partitioned by the British 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