interdependence

This term describes a reciprocal relationship where the survival or success of one entity is inextricably linked to the survival or success of another. It suggests a balanced system of mutual necessity rather than a one-sided dependency, often evoking a sense of stability or fragility depending on the context.

In professional or political discourse, it frequently refers to globalized systems where nations rely on each other for resources and security. In biological contexts, it emphasizes the intricate web of life where the extinction of one species could trigger a collapse of the entire ecosystem.