Azure Active Directory (Azure AD) is Microsoft's multi-tenant, cloud-based directory, and identity management service that combines core directory services, application access management, and identity protection into a single solution.

Azure Active Directory (Azure AD) is Microsoft’s cloud-based identity and access management service, which helps your employees sign in and access resources in: External resources, such as Microsoft 365, the Azure portal, and thousands of other SaaS app

Azure AD is a cloud-based identity and access management service. It has in-built federation capabilities and provides single sign-on to SaaS applications. The applications that are hosted on Azure can be Microsoft applications like office365 or nonMicros