difference vs differentiate

difference is a noun but differentiate is not a noun.

Word	Noun	Adjective	Verb	Adverb
difference	Yes	No	No	No
differentiate	No	No	Yes	No

difference (noun)	differentiate (noun)
the quality of being unlike or dissimilar
a disagreement or argument about something important
a variation that deviates from the standard or norm
the number that remains after subtraction; the number that when added to the subtrahend gives the minuend
a significant change

difference (verb)	differentiate (verb)
	become distinct and acquire a different character
	become different during development
	evolve so as to lead to a new species or develop in a way most suited to the environment
	calculate a derivative; take the derivative
	mark as different
	be a distinctive feature, attribute, or trait; sometimes in a very positive sense