turn away vs refuse

turn away is not a noun while refuse is a noun.

Word	Noun	Adjective	Verb	Adverb
turn away	No	No	Yes	No
refuse	Yes	No	Yes	No

As verbs, turn away and refuse are synonyms defined as:

Other synonyms of turn away include reject, turn down.

turn away (noun)	refuse (noun)
	food that is discarded (as from a kitchen)

turn away (verb)	refuse (verb)
turn from a straight course, fixed direction, or line of interest	show unwillingness towards
turn away or aside	not accept as true
move so as not face somebody or something	refuse to let have
refuse entrance or membership	refuse entrance or membership
	elude, especially in a baffling way
	resist immunologically the introduction of some foreign tissue or organ