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Chief of Staff
noun
- the senior officer of the U.S. Army or Air Force, a member of the Joint Chiefs of Staff, responsible to the secretary of a service branch.
- (lowercase) the senior or principal staff officer in a brigade or division or higher unit in the U.S. Army or Marine Corps, in a numbered unit in the U.S. Air Force, or in a unit in the U.S. Navy commanded by a rear admiral or one of higher rank.
- (lowercase) the senior officer in command of a general staff, especially that of the military forces of a nation.
- (lowercase) the head of any staff:
the chief of staff for the First Lady.
Chief of Staff
noun
- the senior staff officer under the commander of a major military formation or organization
- the senior officer of each service of the armed forces
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Word History and Origins
Origin of Chief of Staff1
First recorded in 1880–85
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