Meanings
Calque of Latin iacta ālea est, a grammatically, and thereby semantically, incorrect translation by the Roman historian Suetonius (c. 69 – p. 122 C.E.) in his work Vīta Dīvī Iūlī (On the Life of the Caesars, 121 C.E.)[1] of the Ancient Greek ἀνερρίφθω κύβος (anerrhíphthō kúbos), which was said to have been spoken by Julius Caesar (100 – 44 B.C.E.) when he crossed the Rubicon to irreversibly begin a civil war in the Roman Republic (see cross the Rubicon).[2]
How to pronounce "the die is cast":
AU
Conclusive action has been taken, so events will proceed in an irreversible manner; the point of no return has been passed; the future is determined; there are no more options.
Example Sentences
1
With the project already started, the die is cast, and we have to see it through.
2
After signing the contract, the die is cast and we are committed to the deal.