Meanings of coup-de-grace in English

Before he can deliver the coup-de-grace, however, I conveniently decide it's time for lunch.

Hostilities were resumed and the coup-de-grace was given to Mexico on the historic hill of Chapultepec.

Will England also have received her coup-de-grace?

We need to finish that off, or leave it open for the major media to deliver the coup-de-grace.

The time was ripe for the coup-de-grace soon to be delivered by Americans co-operating with the Allies on a seventy-one mile front.

The Frenchman surges to a 3-1 lead and then follows that up with his coup-de-grace: a double fault.

For a quarter of an hour he had been making efforts to wriggle himself free from his bulky shoulder-pack without exposing himself to a coup-de-grace.