get away vs getaway

get away is not a noun while getaway is a noun.

Word	Noun	Adjective	Verb	Adverb
get away	No	No	Yes	No
getaway	Yes	No	No	No

get away (noun)	getaway (noun)
	a rapid escape (as by criminals)
	the attribute of being capable of rapid acceleration

get away (verb)	getaway (verb)
escape potentially unpleasant consequences; get away with a forbidden action
run away from confinement
remove oneself from a familiar environment, usually for pleasure or diversion