http://www.leg.state.fl.us/Statutes/index.cfm?App_mode=Display_Statute&Search_String=&URL=0700-0799/0790/Sections/0790.001.html
790.001 Definitions.—As used in this chapter, except where the context otherwise requires:
(3)(a) “Concealed weapon” means any dirk, metallic knuckles, billie, tear gas gun, chemical weapon or device, or other deadly weapon carried on or about a person in such a manner as to conceal the weapon from the ordinary sight of another person.
(13) “Weapon” means any dirk, knife, metallic knuckles, slungshot, billie, tear gas gun, chemical weapon or device, or other deadly weapon except a firearm or a common pocketknife, plastic knife, or blunt-bladed table knife.
Note: case law holds that a folding knife, with a blade 4 inches or less, is a common pocket knife.