NAIL (DOWN) Synonyms: 28 Similar and Opposite Words

nail (down)

verb

Definition of nail (down)

as in to prove

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Example Sentences

Recent Examples of Synonyms for nail (down)

Verb

Unfamiliar Hungarian names from the nearby vineyards on the wine list can prove a revelation—in a good way—at lunch or dinner.

— Condé Nast, Condé Nast Traveler, 4 Aug. 2026
But Covid-19 vaccines have consistently proved to provide significant protection against severe disease, hospitalization and death.

— Deidre McPhillips, CNN Money, 4 Aug. 2026

Definition of prove

Verb

As the mastermind behind the Hollywood hair of stars like Stone, Lily Collins, and Zoe Saldaña — and the founder of Rōz Hair — her styling fingerprints decorate awards show red carpets and Instagram feeds alike.

— Averi Baudler, PEOPLE, 5 Aug. 2026
Video from his dash camera shows the aircraft gliding under a highway sign, missing it by mere feet, before touching down in the empty lanes.

— Aaron Cooper, CNN Money, 4 Aug. 2026

Definition of show

Verb

City Directors Kathy Webb and Capi Peck requested the proposal to establish the six-month moratorium earlier this summer.

— Joseph Flaherty, Arkansas Online, 4 Aug. 2026
In 2009, Boko Haram, based in the northeast of the country, began a campaign of guerrilla attacks and suicide bombings, in an effort to establish a caliphate in the region.

— Alexis Okeowo, New Yorker, 3 Aug. 2026

Definition of establish

Verb

While there is an electric fence, a few times a year determined goats make their way out.

— Ricky Sayer, CBS News, 6 Aug. 2026
Whether health workers like Kayimpa receive that support could determine how many remain on the front line, fighting to keep patients alive and contain the virus.

— Nimi Princewill, CNN Money, 6 Aug. 2026

Definition of determine

Verb

Iran routinely puts up billboards across the city, purporting to demonstrate its might amid the war with Israel and the US.

— Todd Symons, CNN Money, 6 Aug. 2026
Residents argue the temporary adjustment demonstrated that the airport can safely operate without routing most departures through the same narrow corridor.

— Kenny Choi, CBS News, 6 Aug. 2026

Definition of demonstrate

Verb

The University of Miami Health System and UnitedHealthcare have reached a deal that will let thousands of patients who are insured through United continue to receive in-network care with UHealth doctors.

— Michelle Marchante, Miami Herald, 31 July 2026
And with these CDs being FDIC-insured up to $250,000 per account, there's an additional layer of protection to account for here that can make these accounts worth serious exploration in today's unpredictable financial climate.

— Matt Richardson, CBS News, 31 July 2026

Definition of insure

Verb

The ethnic unity law, Beijing says, helps ensure equality and support economic development.

— CNN Money, CNN Money, 2 Aug. 2026
Planners prioritize areas that don’t have equitable park access to ensure everybody can get to a dog park, splash pad or even just green space, Walker said.

— Charlotte Observer, Charlotte Observer, 1 Aug. 2026

Definition of ensure

Verb

It may also be remembered as the moment volleyball secured its rightful place among America's premier spectator sports.

— Tim Genske, Forbes.com, 8 Aug. 2026
The Historical Center worked with the government of Papua New Guinea to secure all the permissions to legally recover parts of the plane, Fiandt said.

— Alexandra Skores, CNN Money, 8 Aug. 2026

Definition of secure

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Browse Nearby Words

nail-biting

nail (down)

nailed

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Style

“Nail (down).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nail%20%28down%29. Accessed 8 Aug. 2026.

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Synonyms of nail (down)

verb

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