prevision vs projection

prevision and projection both are nouns.

Word	Noun	Adjective	Verb	Adverb
prevision	Yes	No	No	No
projection	Yes	No	No	No

As nouns, projection is a hyponym of prevision; that is, projection is a word with a more specific, narrower meaning than prevision:

Other hyponyms of prevision include prognostication, prophecy, vaticination, adumbration, foreshadowing, prefiguration.

prevision (noun)	projection (noun)
the power to foresee the future	the act of expelling or projecting or ejecting
a prophetic vision (as in a dream)	the act of projecting out from something
seeing ahead; knowing in advance; foreseeing	any structure that branches out from a central support
the act of predicting (as by reasoning about the future)	the representation of a figure or solid on a plane as it would look from a particular direction
	a planned undertaking
	a prediction made by extrapolating from past observations
	the projection of an image from a film onto a screen
	the acoustic phenomenon that gives sound a penetrating quality
	(psychiatry) a defense mechanism by which your own traits and emotions are attributed to someone else
	any solid convex shape that juts out from something