黃旗 [黄－]

Jyutping wong4 kei4
Pinyin huáng qí

Definitions (Wiktionary)
  1. noun, Hong-Kong
    a yellow banner used by the police: "Police Warning: You are in breach of the law. You may be prosecuted. / 警察警告：你現在違反法例 你可能被檢控"
  2. noun, archaic
    a yellow banner (used by the military in ancient times)
  3. noun, Hong-Kong
    a yellow banner used by the police: "Police Cordon, Do Not Cross / 警察封鎖線，不得越過"
  4. name, obsolete
    Denmark