final solution

Calque of German Endlösung.

final solution (plural final solutions)

1. (historical) The planned and attempted mass murder of the European Jews by the Nazis; the Holocaust.
2. Used other than with a figurative or idiomatic meaning: see final,‎ solution.
   • 1911, Gilbert N. Lewis and Arthur Edgar, The Equilibrium between nitric acid, nitrous acid and nitric oxide, in The Journal of the American Chemical Society, volume 33, page 297:

     Each mol of nitric acid gives three mol of nitrous acid which is therefore present in the final solution to the amount of 0.048 mol per liter.

   • 2004, J. Stevens and A. Blackstone, The Final Solution to Property Tax
   • (Can we date this quote?), Bernard D. den Ouden, Language and Creativity: an interdisciplinary essay in Chomskyan humanism →ISBN, page 8:

     Thus to argue that there is no final solution to this problem would be a disguised form of pretentious finality, [...]

• Jewish Question