| verb | indicate by signs “These signs bode bad news” |
| verb | commence in a manner calculated to bring good luck “They auspicated the trip with a bottle of champagne” |
| portent | noun | a sign of something about to happen |
| auspice | noun | a favorable omen |
| prognostication | noun | a sign of something about to happen |
| prognosis | noun | a prediction about how something (as the weather) will develop |
| omen | noun | a sign of something about to happen |
| presage | noun | a sign of something about to happen |
| foreshadowing | noun | the act of providing vague advance indications; representing beforehand |
| augur | noun | (ancient Rome) a religious official who interpreted omens to guide public policy |
| prefigurative | adjective | indistinctly prophetic |
| forecast | noun | a prediction about how something (as the weather) will develop |
| predictive | adjective | of or relating to prediction; having value for making predictions |