FISCAL is a 6 letter word that starts with F.

1. \Fis"cal\, a. [F. fiscal, L. fiscalis, fr. fiscus. See
   {Fisc}.]
   Pertaining to the public treasury or revenue.
   
         The fiscal arreangements of government.
                                                  --A.gt.Hamilton.
   
   

2. \Fis"cal\, n.
   1. The income of a prince or a state; revenue; exhequer.
      [Obs.] --Bacon.
   
   2. A treasurer. --H. Swinburne.
   
   3. A public officer in Scotland who prosecutes in petty
      criminal cases; -- called also {procurator fiscal}.
   
   4. The solicitor in Spain and Portugal; the attorney-general.