complex

US /kəmˈplɛks, ˈkɑmˌplɛks/

UK /'kɒmpleks/

A2

noun

  • Group of buildings all used for the same purpose
  • Psychological issue regarding self-image

adjective

  • Not being simple; having many parts or aspects

Examples

Don't keep on at him about his handwriting or he'll get a complex.

This is a highly complex matter.