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

Getting Brown proved to be the move that unlocked Philadelphia’s ability to recruit James.

— Tony Jones, New York Times, 8 Sep. 2026
The height variations alone generated strong ESM signals, proving that false data could appear out of thin air.

— Mrigakshi Dixit, Interesting Engineering, 7 Sep. 2026

Definition of prove

Verb

The rapidly evolving technology has become a source of controversy after a series of hacks in recent months that showed AI agents can conspire to deceive humans.

— Arkansas Online, Arkansas Online, 15 Sep. 2026
Her Eras show doc lost its awards last weekend, and the Chiefs play the Broncos tonight, but that didn’t stop people from speculating.

— Vulture Staff, Vulture, 15 Sep. 2026

Definition of show

Verb

Inputs divided by outputs established a unit-cost baseline that CFOs could optimize, benchmark and defend to the board.

— Hemant Kapadia, Forbes.com, 15 Sep. 2026
In 2003, Congress supported the goals and ideals of College Savings Month, helping establish September as a time to encourage more families to think about saving before future education costs arrive.

— Sacbee.com, Sacbee.com, 14 Sep. 2026

Definition of establish

Verb

California's next governor will ultimately determine whether to accept or reject the board's recommendation.

— Natalie Neysa Alund, USA Today, 10 Sep. 2026
The identities of those killed have yet to be determined, al-Masirah satellite news channel cited Saboula as saying.

— Arkansas Online, Arkansas Online, 10 Sep. 2026

Definition of determine

Verb

Eos uses the same planar-coil architecture and is intended to demonstrate fusion performance relevant to a commercial power plant.

— Atharva Gosavi, Interesting Engineering, 10 Sep. 2026
An ability to repeat sprints, an ease in gliding movement into the channels and, as demonstrated with Cole Palmer at Chelsea, establishing connections with Villa’s No 10s behind him.

— Jacob Tanswell, New York Times, 9 Sep. 2026

Definition of demonstrate

Verb

Alongside safety protocols, new liability frameworks are being looked at so that commercial nuclear ships can be insured at reasonable market rates.

— New Atlas, New Atlas, 4 Sep. 2026
These are proprietary reverse mortgages that, unlike HECMS, are not insured by the Federal Housing Administration.

— Kelsey Neubauer, CNBC, 4 Sep. 2026

Definition of insure

Verb

That pair, combined with the wider structure and personnel around them, ensure Leeds do not collapse when home sides like Brighton, predictably, lay it on thick.

— Beren Cross, New York Times, 6 Sep. 2026
Miles of steel cables were drilled at least a foot deep into the mountain rock, to ensure dozens of climbers are safe to traverse the mountainside simultaneously.

— Sacbee.com, Sacbee.com, 5 Sep. 2026

Definition of ensure

Verb

Graphite is a key battery material, and securing alternative sources and production methods is part of efforts to strengthen US battery supply chains.

— Neetika Walter, Interesting Engineering, 16 Sep. 2026
In his post, Zelenskyy said Ukraine has proposed that partners help secure an agreement with Russia for a ceasefire.

— Arkansas Online, Arkansas Online, 15 Sep. 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 17 Sep. 2026.

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Synonyms of nail (down)

verb

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