cleansing vs cleanup

cleansing and cleanup both are nouns.

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

As nouns, cleansing and cleanup are synonyms defined as:

Other synonyms of cleansing include cleaning.

cleansing (noun)	cleanup (noun)
the act of making something clean	the act of making something clean
	(baseball) the fourth position in the batting order (usually filled by the best batter on the team)
	a very large profit

cleansing (adjective)	cleanup (adjective)
acting like an antiseptic
cleansing the body by washing; especially ritual washing of e.g. hands