under secretary
or un·der·sec·re·tar·y
[ uhn-der-sek-ri-ter-ee ]
/ ˈʌn dərˈsɛk rɪˌtɛr i /
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.
Origin of under secretary
First recorded in 1680–90