A registry is a systematic collection of information, often maintained by an organization or government, that serves a specific purpose. For example, a birth registry records details about individuals born in a certain area, including names, dates, and parents' information. Registries can also be used for tracking items, such as vehicle registrations that document ownership and details of cars. In addition to personal records, registries can be used in various fields, such as medical registries that collect data on diseases and treatments to improve healthcare. They help ensure accurate information is available for research, policy-making, and public services.