cancel vs cancellation

cancel and cancellation both are nouns.

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

cancel (noun)	cancellation (noun)
a notation cancelling a previous sharp or flat	the act of cancelling; calling off some arrangement
	the speech act of revoking or annulling or making void

cancel (verb)	cancellation (verb)
make invalid for use
remove or make invisible
declare null and void; make ineffective
postpone indefinitely or annul something that was scheduled
make up for