complex vs Byzantine

complex and Byzantine both are nouns.

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

complex (noun)	Byzantine (noun)
a whole structure (as a building) made up of interconnected or related structures	a native or inhabitant of Byzantium or of the Byzantine Empire
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
a compound described in terms of the central atom to which other atoms are bound or coordinated

complex (adjective)	Byzantine (adjective)
complicated in structure; consisting of interconnected parts	of or relating to or characteristic of the Byzantine Empire or the ancient city of Byzantium
difficult to analyze or understand	of or relating to the Eastern Orthodox Church or the rites performed in it
	highly complex or intricate and occasionally devious