cleanup vs sanitisation

cleanup and sanitisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
cleanup	Yes	No	No	No
sanitisation	Yes	No	No	No

As nouns, sanitisation is a hyponym of cleanup; that is, sanitisation is a word with a more specific, narrower meaning than cleanup:

cleanup (noun)	sanitisation (noun)
the act of making something clean	making something sanitary (free of germs) as by sterilizing
(baseball) the fourth position in the batting order (usually filled by the best batter on the team)
a very large profit