| 征兆 | zhēng zhào | omen; sign (that sth is about to happen); warning sign | |
| 预兆 | yù zhào | omen; sign (of sth yet to occur); prior indication; to foreshadow | |
| 先兆 | xiān zhào | omen | |
| 前兆 | qián zhào | omen; prior indication; first sign | |
| 吉兆 | jí zhào | lucky omen |
| 1 | You may pick whichever one you like best. | |
| 2 | Chest pain may be a precursor to breast hyperplasia, and medical attention should be sought promptly for treatment. | |
| 3 | Some people believe that seeing dark clouds in one's sleep is a precursor to chaos or a negative event, while other people believe it is just a regular phenomenon. |
