die2

 
Pronunciation: /dʌɪ/

noun

  • 2 (plural dies) a device for cutting or moulding metal into a particular shape.
  • an engraved device for stamping a design on coins or medals.
  • 3 Architecture the cubical part of a pedestal between the base and the cornice; a dado or plinth.

Phrases

the die is cast

an event has happened or a decision has been taken that cannot be changed.

(as) straight as a die

absolutely straight.
entirely open and honest.

Origin:

Middle English: from Old French de, from Latin datum 'something given or played', neuter past participle of dare

In modern standard English, the singular die (rather than dice) is uncommon. Dice is used for both the singular and the plural.