Origin: Latin suffix -tion
Prediction has 3 different meanings across 1 category:
the act of predicting (as by reasoning about the future)
"The scientist's careful prediction was based on extensive data and logical analysis of future trends."
a statement made about the future
"The meteorologist's prediction was that heavy rain would fall tomorrow afternoon."
A statement of what will happen in the future.
"The meteorologist made a confident prediction that heavy rain would fall tomorrow morning."
In plain English: A prediction is when you guess what will happen next based on what has happened before.
"Scientists are making new predictions about how climate change will affect sea levels over the next century."
Learned borrowing from Latin praedictiō, praedictiōnis; equivalent to predict + -ion. Compare the Germanic equivalents forespeaking, foretale, foretelling.