Meaning
A decision has been made that cannot be reversed; events have passed the point where anyone can turn back. Used at moments of irrevocable commitment - a declaration of war, a resignation, a signed contract - and often with deliberate gravity. Formal or literary; adds gravity to a moment of no return. Regional use: General English.
Origin
'Die' here is the singular of 'dice', and the metaphor is a gambler's throw that cannot be taken back - nothing to do with death or metal casting. The words are traditionally attributed to Julius Caesar at the Rubicon in 49 BC, when leading his army across the river made civil war inevitable. The evidence is thin: Suetonius, writing in 121 AD in the Life of the Deified Julius, records 'iacta alea est', while Plutarch, also writing over a century after the event, has Caesar quote a line in Greek, 'let the die be cast', possibly from the comedian Menander. What Caesar actually said, if anything, cannot be verified. The earliest known English use is Sir Thomas Herbert's travel account of Africa and Asia (1634): 'is the die cast, must at this one throw all thou hast gaind be lost?' - and, notably, the earliest English appearances make no reference to Caesar at all.
Research Sources
References used to check this entry’s meaning, history, or documented forms.
Variants
- alea iacta est (Latin original)
- the dice are cast
- the dice is cast
- the die has been cast
Usage Examples
- Once the contracts were signed, the die was cast and the merger could not be unwound.
- By announcing her resignation on air, she made sure the die was cast.
- Diplomats on both sides conceded that the die had been cast the moment the tanks moved.