| 怀疑HSK 4 | huái yí | to doubt (sth); to be skeptical of; to have one's doubts; to harbor suspicions; to suspect that | |
| 无疑 | wú yí | no doubt; undoubtedly | |
| 嫌疑人HSK 6 | xián yí rén | a suspect | |
| 疑问HSK 5 | yí wèn | question; interrogation; doubt | |
| 疑惑HSK 6 | yí huò | to doubt; to distrust; unconvincing; to puzzle over; misgivings; suspicions |
| 1 | The police officer arrested the suspect. | |
| 2 | He opened up about his inner doubts | |
| 3 | The police asked the suspect to squat down. | |
| 4 | His eyes were filled with doubt. | |
| 5 | I have to doubt her identity. |