noun (often initial capital letters)
- an official who is subordinate to a principal secretary, as in the U.S. cabinet: Under Secretary of the Treasury.
noun plural -taries
- (in Britain)
- any of various senior civil servants in certain government departments
- short for undersecretary of state: any of various high officials subordinate only to the minister in charge of a department
- (in the US) a high government official subordinate only to the secretary in charge of a department