intense vs extreme

intense is not a noun while extreme is a noun.

Word	Noun	Adjective	Verb	Adverb
intense	No	Yes	No	No
extreme	Yes	Yes	No	No

intense (noun)	extreme (noun)
	the furthest or highest degree of something
	the point located farthest from the middle of something

intense (adjective)	extreme (adjective)
possessing or displaying a distinctive feature to a heightened degree	most distant in any direction
(of color) having the highest saturation	far beyond a norm in quantity or amount or degree; to an utmost degree
extremely sharp or severe	of the greatest possible degree or extent or intensity
	beyond a norm in views or actions