multiplex vs complex

multiplex and complex both are nouns.

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

multiplex (noun)	complex (noun)
a movie theater that has several different auditoriums in the same building	a whole structure (as a building) made up of interconnected or related structures
communicates two or more signals over a common channel	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

multiplex (adjective)	complex (adjective)
having many parts or aspects	complicated in structure; consisting of interconnected parts
many and varied; having many features or forms	difficult to analyze or understand