compartmentalize vs compartment

compartmentalize is not a noun while compartment is a noun.

Word	Noun	Adjective	Verb	Adverb
compartmentalize	No	No	Yes	No
compartment	Yes	No	No	No

compartmentalize (noun)	compartment (noun)
	a partitioned section, chamber, or separate room within a larger enclosed area
	a space into which an area is subdivided

compartmentalize (verb)	compartment (verb)
separate into isolated compartments or categories