Division
Segment
noun, verbal noun, の adjective
くぶん
区分 (くぶん) Division, Segment
分裂 (ぶんれつ) Split, Division
部分 (ぶぶん) Portion, Section, Part
分類 (ぶんるい) Classification, Categorization
The district 区 was separated 分 into Divisions 区分