Causal relationship is a term used to describe the relationship between two events or variables where one event or variable is responsible for causing the other. Synonyms for causal relationship include cause and effect, correlation, link, association, connection, interdependence, and dependency. Causal relationship is a fundamental concept in various fields, including science, economics, psychology, and sociology. It is important to distinguish between causal relationships and correlations, which are not necessarily indicative of a causal relationship. A thorough understanding of causal relationships is critical for making informed decisions and developing effective interventions in various settings. Various research methods and techniques are commonly used to establish causal relationships in different fields.