multiplex

nouns

communicates two or more signals over a common channel
is a type of (narrower)
(often plural) systems used in transmitting messages over a distance electronically
a movie theater than has several different auditoriums in the same building
is a type of (narrower)
a theater where films are shown

adjectives

many and varied; having many features or forms
"manifold reasons"; "our manifold failings"; "manifold intelligence"; "the multiplex opportunities in high technology"
having many parts or aspects
"the multiplex problem of drug abuse"
is similar to
complicated in structure; consisting of interconnected parts
"a complex set of variations based on a simple folk melody"; "a complex mass of diverse laws and customs"