in conjunction with (someone or something)

in conjunction with (someone or something)

Jointly with someone or something; in tandem with someone or something. The tax changes are coming into effect in conjunction with several relief schemes for lower-income families. The director worked in conjunction with numerous psychologists to faithfully portray dissociative identity disorder. My wife and I illustrate and write our books in conjunction.
See also: conjunction

in conˈjunction with

(formal) together with: The police are working in conjunction with tax officers on the investigation.The system is designed to be used in conjunction with a word processing program.
See also: conjunction