The crossword solution for the term 'FIVE IN THE NINTH INNING' is ENS, which stands for Ensign. Ensign is a rank IN the United States Navy and Coast Guard that is just below Lieutenant Junior Grade. It is the lowest commissioned officer rank IN the US Navy and Coast Guard. The term 'FIVE IN THE NINTH INNING' is a reference to the rank of Ensign, as it is the fifth rank IN the US Navy and Coast Guard, and the ninth rank IN the US Marine Corps.