cancel vs expunge

cancel is a noun but expunge is not a noun.

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

As verbs, expunge is a hyponym of cancel; that is, expunge is a word with a more specific, narrower meaning than cancel:

Other hyponyms of cancel include efface, erase, rub out, score out, wipe off, excise, scratch, strike.

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

cancel (verb)	expunge (verb)
make invalid for use	remove by erasing or crossing out or as if by drawing a line
remove or make invisible
declare null and void; make ineffective
postpone indefinitely or annul something that was scheduled
make up for