The U.S. Navy Officer is a commissioned officer in the United States Navy, responsible for leading and managing personnel and resources. The two crossword solutions for this term are ENSIGN (6 letters) and Lieut (5 letters). An ENSIGN is the most junior commissioned officer in the Navy, typically holding a rank just above the most senior enlisted personnel. A Lieut is a more senior commissioned officer, typically holding a rank between Lieutenant Junior Grade and Commander.