die is cast

the die is cast

A course of action has been finalized. This expression comes from a Latin phrase thought to have been said by Julius Caesar when he crossed the Rubicon river and became embroiled in civil war in 49 BCE. Well, the die is cast now that we've closed on the house—we're officially homeowners!
See also: cast, die

die is cast

Prov. A process is past the point of no return. (The die is one of a pair of dice. The cast means thrown. This phrase [in Latin] was said by Julius Caesar when he crossed the Rubicon with his legions, starting a civil war.) After that speech favoring reform of the education system, the die is cast. This is now a campaign issue. The die is cast. There is no turning back on this point.
See also: cast, die