complex vs complex

complex and complex both are nouns.

Word	Noun	Adjective	Verb	Adverb
complex	Yes	Yes	No	No
complex	Yes	Yes	No	No

complex (noun)	complex (noun)
a whole structure (as a building) made up of interconnected or related structures	a whole structure (as a building) made up of interconnected or related structures
a conceptual whole made up of complicated and related parts	a conceptual whole made up of complicated and related parts
(psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior	(psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
a compound described in terms of the central atom to which other atoms are bound or coordinated	a compound described in terms of the central atom to which other atoms are bound or coordinated

complex (adjective)	complex (adjective)
complicated in structure; consisting of interconnected parts	complicated in structure; consisting of interconnected parts
difficult to analyze or understand	difficult to analyze or understand