"entire authority" is a correct and usable phrase in written English.
It is often used in a context where someone has full control over a situation or a set of resources. For example: "The CEO has been granted the entire authority to make decisions regarding the company."
Now he needs to step back and take a hard look at the entire authority system.
Ryback came down to the ring but before he could speak, the entire Authority appeared with new recruit Mark Henry.
We had our Main Event next, the big match between Ambrose and Cena and we also had the entire Authority watching at ringside.
As a result, the entire authority of the imperial government was concentrated in the hands of a single emperor, Go-Daigo.
Mr. Redmond, the retired conductor, was the eighth-highest paid employee in the entire authority, ranking 16 spots higher than his railroad's executive vice president.
Of the many historical examples he offers, the best known is L. Paul Bremer's de-Baathification of Iraq, in the spring of 2003, in which the entire authority structure of Iraq was disbanded at a stroke, creating a leadership cadre for a terrorist campaign against the American occupiers.
The geographic county of East Riding of Yorkshire covers not only the entire unitary authority of the same name but also the neighbouring city and unitary authority of Kingston upon Hull Hulll).
As Vatican I solemnly declared, the Roman pontiff is vested with the entire teaching authority of the Roman Catholic Church.
The governor's spokesman, Dean Pagani, said the deal was approved by the entire trash authority board, Democrats and Republicans alike.
The legislature has replaced the entire trash authority board and changed it so the governor now names only 3 of its 11 members.
In fact, more than a quarter of the Long Island Rail Road's 7,000 employees earned more than $100,000 last year, including the conductor, Thomas J. Redmond, and two locomotive engineers — who were among the top 25 earners in the entire transportation authority.
