once and for all

Idioms  

1. As a settled matter, finally, permanently, as in Once and for all, we're not hiring that organist again, or We've settled that question once and for all. This expression is in effect an abbreviation for “one time and for all time.” [Late 1400s]

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Example Sentences

"We hope the problem is solved once and for all," said another Bamako resident.

From Barron's

Afterwards, the PM said Ukraine's "friends and partners" remained committed to securing a "lasting peace once and for all".

From BBC

In his state-of-the-nation speech last month, he declared that the West sought to destroy Russia — “to finish us off once and for all.”

From New York Times

The couple planned to return to Villagarzón as soon as they were able to stay overnight, so they could sort everything out once and for all.

From New York Times

"That's why I'm bringing forward a new plan to crack down on this behaviour once and for all - so that everyone can feel proud of where they live."

From BBC