disservice vs ill turn

disservice and ill turn both are nouns.

Word	Noun	Adjective	Verb	Adverb
disservice	Yes	No	No	No
ill turn	Yes	No	No	No

As nouns, disservice and ill turn are synonyms defined as:

Other synonyms of disservice include ill service.

disservice (noun)	ill turn (noun)
an act intended to help that turns out badly	an act intended to help that turns out badly