公安 (gōng ān) means “(Ministry of) Public Security; public safety; public security”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
公安机关破获了案件。
Gōng'ān jīguān pòhuò le ànjiàn.
Public security authorities cracked the case.
Updated: 2026-07-18