turn down vs scorn

turn down is not a noun while scorn is a noun.

Word	Noun	Adjective	Verb	Adverb
turn down	No	No	Yes	No
scorn	Yes	No	Yes	No

As verbs, turn down and scorn are synonyms defined as:

Other synonyms of turn down include disdain, freeze off, pooh-pooh, reject, spurn.

turn down (noun)	scorn (noun)
	open disrespect for a person or thing
	lack of respect accompanied by a feeling of intense dislike

turn down (verb)	scorn (verb)
make lower or quieter	reject with contempt
take a downward direction	look down on with disdain
reject with contempt
not accept as true
refuse entrance or membership