- 黄牌警告 huángpáijǐnggào yellow card warningA formal warning issued by a referee during sports matches to a player or coach
- 危险警告灯 wēixiǎnjǐnggàodēng hazard lights
- 发出警告 fāchūjǐnggào to issue a warningTo send out or issue a warning to others.
- 警告牌 jǐnggàopái warning signA sign or placard used to display a caution or warning
- 辐射警告标志 fúshèjǐnggàobiāozhì radiation warning symbola standardized sign or symbol used to indicate the presence of radioactive materials or ionizing radiation