set back vs cancel

set back is not a noun while cancel is a noun.

Word	Noun	Adjective	Verb	Adverb
set back	No	No	Yes	No
cancel	Yes	No	Yes	No

set back (noun)	cancel (noun)
	a notation cancelling a previous sharp or flat

set back (verb)	cancel (verb)
slow down the progress of; hinder	make invalid for use
cost a certain amount	remove or make invisible
hold back to a later time	declare null and void; make ineffective
	postpone indefinitely or annul something that was scheduled
	make up for