complicity
noun /kəmˈplɪsəti/
  /kəmˈplɪsəti/
 [uncountable] (formal)- complicity (in something) the act of taking part with another person in a crime synonym collusion
- to be guilty of complicity in the murder
 - evident complicity between the two brothers
 
Extra ExamplesTopics Crime and punishmentc2- She did not suspect him of complicity with the authorities.
 - her alleged complicity in the bombing
 - her complicity in a plot to kill the president
 - the complicity between the army and drug smugglers
 
Oxford Collocations Dictionaryadjective- alleged
 - apparent
 - active
 - …
 
- complicity between
 - complicity in
 - complicity with
 - …
 
- an act of complicity
 
Word Originmid 17th cent.: from Middle English complice ‘an associate’, from Old French, from late Latin complex, complic- ‘allied’, from Latin complicare ‘fold together’, from com- ‘together’ + plicare ‘to fold’. Compare with accomplice.