interdependence
noun [ C or U ]
uk/ˌɪntədɪˈpendəns/ usif there is an interdependence between two or more things, they depend on each other:
the interdependence between global trading partners
interdependence with sth A company's interdependence with its suppliers means that if one fails, others may follow.
The head of the supermarket chain said he recognized the interdependence of businesses and the communities in which they operate.