enhance vs raise

enhance is not a noun while raise is a noun.

Word	Noun	Adjective	Verb	Adverb
enhance	No	No	Yes	No
raise	Yes	No	Yes	No

As verbs, enhance and raise are synonyms defined as:

Other synonyms of enhance include heighten.

enhance (noun)	raise (noun)
	the act of raising something
	increasing the size of a bet (as in poker)
	the amount a salary is increased
	an upward slope or grade (as in a road)

enhance (verb)	raise (verb)
increase the level of	cause to become alive again
make better or more attractive	increase the level of
	raise the level or amount of something
	raise in rank or condition
	invigorate or heighten
	put an end to
	bring (a surface or a design) into relief and cause to project
	multiply (a number) by itself a specified number of times: 8 is 2 raised to the power 3
	cause to be heard or known; express or utter
	put forward for consideration or discussion
	activate or stir up
	establish radio communications with
	pronounce (vowels) by bringing the tongue closer to the roof of the mouth
	cause to assemble or enlist in military
	bet more than the previous player
	bid (one's partner's suit) at a higher level
	summon into action or bring into existence, often as if by magic
	construct, build, or erect
	cultivate by growing, often involving improvements by means of agricultural techniques
	create a disturbance, especially by making a great noise
	call forth (emotions, feelings, and responses)
	raise from a lower to a higher position
	cause to puff up with a leaven
	move upwards
	collect funds for a specific purpose
	look after a child until it is an adult
	give a promotion to or assign to a higher position
	register formally as a participant or member