t, -at]
| 1. | an authoritative decree, sanction, or order: a royal fiat. |
| 2. | a formula containing the word fiat, by which a person in authority gives sanction. |
| 3. | an arbitrary decree or pronouncement, esp. by a person or group of persons having absolute authority to enforce it: The king ruled by fiat. |

| FIAT Italian Fabbrica Italiana Automobili Torino (Italian Automobile Factory of Turin) |