once and for all

phrase

1
: with finality : definitively
The team proved once and for all that they are the best.
2
: for the last time
I'm telling you once and for all that I'm not going.

Examples of once and for all in a Sentence

Recent Examples on the Web
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Demolition is required to address flare ups and extinguish the fire once and for all. — City News Service, Daily News, 4 July 2026 The world's greatest criminal mastermind has not, however, so Lex Luthor comes out of retirement to defeat the Man of Steel once and for all. — Richard Edwards, Space.com, 28 June 2026 Between heat stress, environmental conditions, and common lawn care mistakes, several factors could be causing your grass to turn brown, and identifying the right one is key to fixing the problem once and for all. — The Spruce, 25 June 2026 The earliest of the Roman Romance novels dates from the first century CE, just as the first emperor Augustus ended the Republic once and for all and gathered the whole Roman empire into his own grubby little hands. — Literary Hub, 30 June 2026

Rhymes for once and for all

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Browse Nearby Words

once and again
once and for all
once bitten, twice shy
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Cite this Entry

“Once and for all.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/once%20and%20for%20all. Accessed 7 Jul. 2026.

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Nglish: Translation of once and for all for Spanish Speakers

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