治安 zhì’ān law and order
law and order; public security
How to remember 治安: 治 to administer + 安 peace = law and order.
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How it is used
- Refers to public order and safety in a place - 这个小区治安很好 (zhège xiǎoqū zhì'ān hěn hǎo) this neighborhood is very safe (low crime).
- Note it's about crime and social order, not personal safety from accidents; pairs with 好/差 (good/bad) and 管理 (to manage).
- Contrast 安全 (ānquán), which is 'safe' in the broad physical sense; 治安 specifically means the crime-and-policing climate of an area.