I would think Robert means Permit, but I am sure he will clarify this at some point.
Actually, according to the AA, an International Driving Licence is not a legally recognised document and if you pay to get one of these from various Comapanies in the internet, you will not be able to use this to meet national requirements to carry an IDP.
In their update of 15 February 2013 they state:
The Florida Department of Highway Safety and Motor Vehicles (DHSMV) has since released a Statement on International Driving Permits. This says that the Florida law will not be enforced until a final determination regarding the Geneva Convention on Road Traffic can be made. Although the DHSMV states the law will not be enforced, theoretically this law still exists.
Consequently, the AA strongly advises that you should obtain an IDP if you intend to drive in Florida before the possible repeal of the law in March.
The UK licence is a licence issued in the UK which can be used throughout Europe, it is not an international one.