1) Secretary 
An undersecretary is an executive government official in many countries, frequently a career public servant, who typically acts as a senior administrator or second-in-command to a politically appointed Cabinet Minister or other government official. The title is used in many different political systems. ==Holy See== In the Holy See, undersecretary ...
• (n.) A secretary who is subordinate to the chief secretary; an assistant secretary; as, an undersecretary of the Treasury.
[n] - a secretary immediately subordinate to the head of a department of government
noun a secretary immediately subordinate to the head of a department of government