Azure Policies
It enforces organisational standards to assess compliance at-scale which do not restrict access, and they only observe for compliance.
Policy Definitions is a JSON file used to describe business rules to control access to resources
Policy Assignment is the scope of policy. can be assigned to user, a Resource Groups or management groups
Policy Parameters are the values that you can pass into Policy definition so your policies are more flexible for re-use.
Initiative Definitos just a group of policy definitions