as one man
1. In unison. The dancers moved as one man across the stage.
2. Unanimously. The committee reached that decision as one man.
as one man
1. In complete agreement; unanimously.
2. With no exception: They objected as one man.
as one man
Unanimously, together. The term appears in the King James Version of the Book of Judges (20:8): “And all the people arose as one man.” More recently John R. Green used it in A Short History of the English People (1876): “Spain rose as one man against the stranger.”