efface vs cancel

efface is not a noun while cancel is a noun.

Word	Noun	Adjective	Verb	Adverb
efface	No	No	Yes	No
cancel	Yes	No	Yes	No

As verbs, cancel is a hypernym of efface; that is, cancel is a word with a broader meaning than efface:

Other hypernyms of efface include delete.

efface (noun)	cancel (noun)
	a notation cancelling a previous sharp or flat

efface (verb)	cancel (verb)
remove completely from recognition or memory	make invalid for use
remove by or as if by rubbing or erasing	remove or make invisible
make inconspicuous	declare null and void; make ineffective
	postpone indefinitely or annul something that was scheduled
	make up for