Forecast
Part of speech: verb
Definition: To estimate how a condition will be in the future.
Part of speech: noun
Definition: An estimation of a future condition. A prediction of the weather.
Example sentence: We really can't forecast all that well, and yet we pretend that we can, but we really can't.
Calculate
Part of speech: verb
Definition: To determine the value of something or the solution to something by a mathematical process.To determine values or solutions by a mathematical process.To plan something, especially something morally wrong.
Example sentence: American stuntmen are smart - they think about safety. When they do a jump in a car, they calculate everything: the speed, the distance... But in Hong Kong, we don't know how to count. Everything we do is a guess. If you've got the guts, you do it. All of my stuntmen have gotten hurt.