Prediction/prɪˈdɪkʃn/ Definition 1 of 4Pro Tip 1/3Reality Check Predictions are educated guesses about the future, not facts. Her prediction that the concert would sell out was just speculation. Pro Tip 2/3Personal Opinion Predictions often reflect someone's personal opinion or belief. His prediction that robots will replace jobs is his own view. Pro Tip 3/3Not Always Accurate Predictions can be wrong, as they're based on current knowledge. Her weather prediction was incorrect; it didn't rain at all.