Definition of fiats:
(n) :
An arbitrary or authoritative command or order to do something; an effectual decree.
(n) :
Authorization, permission or (official) sanction.
(n) :
(attributive) (Pertaining to) fiat currency.
(v) :
(transitive, used in academic debate and role-playing games) To make (something) happen.
(v) :
(transitive, law) To issue a fiat.
(n) :
(English law) A warrant of a judge for certain processes.