prophecy vs prognostication

prophecy and prognostication both are nouns.

Word	Noun	Adjective	Verb	Adverb
prophecy	Yes	No	No	No
prognostication	Yes	No	No	No

As nouns, prophecy and prognostication are synonyms defined as:

prophecy and prognostication: knowledge of the future (usually said to be obtained from a divine source)

Other synonyms of prophecy include vaticination.

As nouns, prognostication is a hypernym of prophecy; that is, prognostication is a word with a broader meaning than prophecy:

Other hypernyms of prophecy include forecasting, foretelling, prediction.

prophecy (noun)	prognostication (noun)
knowledge of the future (usually said to be obtained from a divine source)	knowledge of the future (usually said to be obtained from a divine source)
a prediction uttered under divine inspiration	a statement made about the future
	a sign of something about to happen