Predict, prophesy, foresee, forecast mean to know or tell (usually correctly) beforehand what will happen. To predict is usually to foretell with precision of calculation, knowledge, or shrewd inference from facts or experience: The astronomers can predict an eclipse; it may, however, be used without the implication of underlying knowledge or expertise: I predict she'll be a success at the party. Prophesy usually means to predict future events by the aid of divine or supernatural inspiration: Merlin prophesied the two knights would meet in conflict; this verb, too, may be used in a more general, less specific sense. I prophesy he'll be back in the old job. To foresee refers specifically not to the uttering of predictions but to the mental act of seeing ahead; there is often (but not always) a practical implication of preparing for what will happen: He was clever enough to foresee this shortage of materials. Forecast has much the same meaning as predict; it is used today particularly of the weather and other phenomena that cannot easily be accurately predicted: Rain and snow are forecast for tonight. Economists forecast a rise in family income.