noun
residential area; residential quarter; neighborhood
Refers to a designated or recognized area where people live, often used in urban planning or descriptive contexts.
この居住区は静かで住みやすい。
This residential area is quiet and easy to live in.
新しい居住区が郊外に開発された。
A new residential quarter was developed in the suburbs.
Compound of 居住 (residence, dwelling) and 区 (ward, district, area). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese compounding patterns.