The classification level that is broader than the kingdom level is called the domain.
In the biological classification system, organisms are organized into hierarchical categories to help scientists understand the relationships between different life forms. The main taxonomic ranks include domain, kingdom, phylum, class, order, family, genus, and species.
The domain is the highest taxonomic rank, which groups organisms based on fundamental characteristics of their cells. There are three domains: Archaea, Bacteria, and Eukarya. Each kingdom, which falls under these domains, represents a major grouping of life that shares certain characteristics. For instance, the kingdom Animalia is found within the domain Eukarya.
In summary, the domain is the classification level that encompasses multiple kingdoms, making it the broadest category in the biological hierarchy.