What is the term for relying on others for some of one's needs?

The correct term for relying on others for some of one's needs is interdependence. This concept highlights the mutual reliance between individuals or groups, emphasizing that people often depend on one another to meet various needs—be they emotional, social, physical, or economic. Interdependence is a fundamental aspect of human relationships and social structures, showcasing how collaboration and support among individuals enhance overall well-being and efficiency.

In contrast, independence refers to self-sufficiency and the ability to fulfill one's needs without assistance from others, while isolation describes a state of being alone or separated, typically resulting in a lack of interaction with others. Cooperation, on the other hand, involves collective effort and working together towards common goals but does not inherently imply reliance on others for personal needs as interdependence does. Thus, interdependence best captures the idea of leaning on others in a supportive and reciprocal manner.