hasten vs rush

hasten is not a noun while rush is a noun.

Word	Noun	Adjective	Verb	Adverb
hasten	No	No	Yes	No
rush	Yes	Yes	Yes	No

As verbs, hasten and rush are synonyms defined as:

Other synonyms of hasten include festinate, hurry, look sharp.

As verbs, hasten and rush are synonyms defined as:

Other synonyms of hasten include induce, stimulate.

As verbs, hasten and rush are synonyms defined as:

hasten (noun)	rush (noun)
	the act of moving hurriedly and in a careless manner
	(American football) an attempt to advance the ball by running into the line
	a sudden forceful flow
	a sudden burst of activity
	the swift release of a store of affective force
	grasslike plants growing in wet places and having cylindrical often hollow stems

hasten (adjective)	rush (adjective)
	done under pressure
	not accepting reservations

hasten (verb)	rush (verb)
act at high speed	act at high speed
cause to occur rapidly	urge to an unnatural speed
move hurridly	attack suddenly
speed up the progress of; facilitate	cause to occur rapidly
	move hurridly
	run with the ball, in football
	cause to move fast or to rush or race