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

Exploiting a lack of clarity In May 2023—two months after the discovery of BlackLotus—Microsoft began a yearslong process aimed at closing the vulnerability once and for all. — Dan Goodin, ArsTechnica, 3 Nov. 2026

Much ink has been spilled over Judd’s commitment to permanent installation in Marfa, but the architecture makes clear that permanence was never a matter of fixing an arrangement once and for all. — Julian Rose, Artforum, 1 Nov. 2026

Determined to find Michael’s fellow abductee and big sister, Felicia, once and for all, Fairhaven’s exhausted but kindly chief of police, Ellison (Bill Camp), calls upon every resource at his disposal. — Angie Han, HollywoodReporter, 29 Oct. 2026

After a years-long battle, the Los Angeles City Council on Wednesday approved a plan to end oil drilling and pumping within city limits once and for all. — Los Angeles Times, 28 Oct. 2026

Rhymes for once and for all

• chloramphenicol
• dithiothreitol
• geospatial
• isopropanol
• paracetamol
• peroxisomal
• visuospatial
• aerosol
• alcohol
• arbitral
• basketball
• butanol