noun
ministry
A government department headed by a minister.
The ministry's staff serve members of the public.

Etymology
The source names service or an official duty. In government, the word came to identify the department through which a minister carries out a particular area of public business.
In context
it is an autonomous institution under the Department of a promotion of Industry and internal trade in the Ministry of Commerce and Industry
More examples
- She worked for the education ministry.
- Several ministries shared responsibility for the project.
- The finance ministry released its budget.
Forms
ministry · ministries
minister noun — a government official heading a department
Similar words
- department
- The usual American term for a comparable government unit.
- agency
- A government body that need not be headed by a minister.