| zhì | obstruct/stop up |
| 窒 | obstruct stop up |
| 窒塞 | stop up; block |
| 窒息 | to choke to stifle to suffocate |
| 窒息剂 | green cross; asphyxiant |
| 窒息弹 | stifling bomb |
| 窒息性毒剂 | choking agent |
| 窒息性毒气 | choking gas; blood gas |
| 窒息性气体 | suffocating gas; choky gas; chokedamp; asphyxiating gas; blackdamp |
| 窒息性空气 | [Mining] blackdamp; chokedamp |
| 窒息死亡 | death by suffocation |
| 窒息装置 | an asphyxiator |
| 窒热 | stuffy; oppressive |
| 窒碍 | have obstacles; be obstructed |
| 窒闷 | close; stuffy |