Noun
1. a conceptual whole made up of complicated and related parts;
"the complex of shopping malls, houses, and roads created a new town"2. a compound described in terms of the central atom to which other atoms are bound or coordinated
3. (psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
4. a whole structure (as a building) made up of interconnected or related structures