multiplex (Adjective) — Many and varied; having many features or forms. ex. "the multiplex opportunities in high technology"
multiplex (Adjective) — Having many parts or aspects. ex. "the multiplex problem of drug abuse"
multiplex (Noun) — Communicates two or more signals over a common channel.
multiplex (Noun) — A movie theatre that has several different auditoriums in the same building.
multiplex (Verb) — Combine several signals into a single signal.