Dependency refers to a state in which an individual or system relies on another for support, resources, or functionality. This can occur in various contexts, such as in human relationships, where one person may depend on another for emotional or financial support. In technology, software applications may have dependencies on specific libraries or frameworks to function correctly. In economics, dependency can describe a situation where a country relies heavily on another for trade, resources, or aid. This can lead to imbalances and vulnerabilities, as the dependent entity may struggle if the primary source of support is disrupted. Understanding dependency is crucial for assessing risks and fostering resilience in various systems.