complex

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈkɒmplɛks/

US:USA pronunciation: IPAUSA pronunciation: IPA/adj. kəmˈplɛks, ˈkɑmplɛks; n. ˈkɑmplɛks/

US:USA pronunciation: respellingUSA pronunciation: respelling(adj., v. kəm pleks′, kom′pleks; n. kom′pleks)


Collocations for "complex"


Common phrases and expressions where native English speakers use the word "complex" in context.

WordReference English Collocations © 2025

complex

ⓘMost examples are given in US English. We have labeled exceptions as UK.
adj
  1. a complex [matter, requirement, issue, question, process]
  2. has a complex relationship (to, with)
  3. complex [numbers, calculations, equations, formulas]
  4. a complex [network, infrastructure, system] of
  5. a complex [highway, banking, defense] system
  6. a complex [word, sentence]
  7. a complex series of events (which led to)
  8. complex carbohydrates
  9. [very, quite, extremely] complex
  10. [much, far] more complex than we [thought, expected]
  11. is too complex for me (to understand)
n
  1. [molecular, metal, chemical] complexes
  2. vitamin B complex
  3. has [an inferiority, a guilt] complex
  4. suffers from [an inferiority] complex
  5. [Oedipus, Oedipal] complex
  6. a [sports, industry, shopping, parking] complex
  7. are [building, constructing] a new [sports] complex (for)
  8. are [adding on to, renovating] the [sports] complex (in)
  9. a complex designed for [basketball, football]
  10. an [apartment, office] complex
  11. is an [enormous, overwhelming] complex
  12. the complex has a capacity of [15,000]
  13. the complex is [enormous]
  14. the complex is [made, composed] of
  15. a complex of [issues, problems, ideas]
  16. a complex of [country, winding, mountain] roads
'complex' also found in these entries (note: many are not synonyms or translations):
affair - apartment - banking - catering - compound - design - devise - diverse - drawing - elaborate - extremely - font - heritage - hierarchy - highly - increasingly - intricate - machinery - mixture - monitoring - nature - network - overly - phenomenon - principle - starch - system - weather

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