* As a noun (referring to a car brand): "My grandfather always dreamed of owning a classic Fiat 500."
* As a noun (referring to a decree or order): "The king issued a fiat that all citizens must pay taxes."
* As a noun (referring to currency): "The value of the Italian lira plummeted against the fiat currency of the euro."
* As a verb (meaning "to decree or order"): "The emperor fiated that all citizens must pay homage to him."
Here are some sentences using "Fiat" in different contexts:
* "Despite its reputation for being unreliable, the Fiat 500 is a fun and stylish car to drive."
* "The pope's fiat on the matter of abortion was met with both support and opposition."
* "The transition from a gold standard to a fiat currency system was a major shift in global finance."
* "The dictator fiated that all dissenting voices be silenced."