| yí | to doubt/to misbelieve/to suspect |
| 疑 | to doubt to misbelieve to suspect |
| 疑义 | a doubtful point |
| 疑云 | a haze of doubts and suspicions |
| 疑似 | to be suspected to be deceptive plausible but fallacious |
| 疑信参半 | half believing, half doubting |
| 疑兵 | troops deployed to mislead the enemy |
| 疑冰 | ignorant doubt stemming from ignorance (a summer insect has no word for ice, Zhuangzi 莊子|庄子) |
| 疑凶 | suspected of murder criminal suspect |
| 疑团 | suspicion doubts and suspicions a chain of suspicions |
| 疑团莫释 | cannot dissipate one's doubts |
| 疑心 | suspicion |
| 疑心生暗鬼 | suspicions create fantastic fears |
| 疑心病 | idea of reference; a suspicious frame of mind; hypochondria |
| 疑忌 | jealousy suspicious and jealous |
| 疑念 | doubt |
| 疑惑 | to doubt to distrust unconvincing |
| 疑惧 | misgivings |
| 疑案 | a doubtful case a controversy |
| 疑点 | a doubtful point |
| 疑点利益 | [Law] benefit of doubt |