NAIL (DOWN) Synonyms: 28 Similar and Opposite Words

nail (down)

verb

Definition of nail (down)

as in to prove

Related Words

Relevance

Dissimilar Words

Example Sentences

Recent Examples of Synonyms for nail (down)

Verb

At every opportunity, Chris Brown seemed to be waiting in the wings, backflipping in Ne-Yo’s face, proving his dream of a certain era was long gone.

— Clover Hope, Pitchfork, 25 Oct. 2026
None of this means that Miller’s forecast will prove the most accurate in the days to come.

— Shawn Tully, Fortune, 24 Oct. 2026

Definition of prove

Verb

His friendly, supportive presence showed how the rival nations (in the far-off future in which the show was set) were capable of working together.

— JONATHAN LANDRUM JR. THE ASSOCIATED PRESS, Arkansas Online, 27 Oct. 2026
Vucic’s ousting shows the downside of that approach, as the whole relationship will have to be rebuilt from the ground up.

— Brady Knox, The Washington Examiner, 27 Oct. 2026

Definition of show

Verb

Petersen’s research established the concept of mild cognitive impairment, which lies between healthy cognitive aging and dementia.

— Richard Sima, Washington Post, 27 Oct. 2026
Beyond payment speed, Mastercard is also looking to incorporate blockchain and identity data to establish the same level of trust expected across other payment systems, Driver said.

— Jenny Lee, CNBC, 27 Oct. 2026

Definition of establish

Verb

Give the city, the district and potential partners the time to determine whether co-location can work before making a decision that cannot easily be undone.

— Tim Lonergan, Sun Sentinel, 29 Oct. 2026
Establish a panel of coaches, athletic directors and players to determine a reasonable figure and all athletes being paid will receive that amount.

— Letters to the Editor, The Orlando Sentinel, 28 Oct. 2026

Definition of determine

Verb

Cases like Duckett’s demonstrate why that uncertainty is justified.

— Orlando Sentinel, The Orlando Sentinel, 29 Oct. 2026
Toward more natural prosthetic movement The work builds on earlier research by the MIT team, which demonstrated magnetomicrometry in animal models in 2021.

— Kaif Shaikh, Interesting Engineering, 29 Oct. 2026

Definition of demonstrate

Verb

The cost of insuring the French government against default, as measured by credit default swaps, is also the highest since that period.

— Jenni Reid,Chloe Taylor, CNBC, 23 Oct. 2026
With the social media giant planning to spend $135 billion-$145 billion this year, the cost of insuring Meta’s debt against default touched a record on Thursday.

— Jason Ma, Fortune, 18 Oct. 2026

Definition of insure

Verb

County officials responsible for issuing building permits have been accused of failing to conduct adequate inspections to ensure developers comply with safety guidelines and construction standards.

— Arkansas Online, Arkansas Online, 24 Oct. 2026
The Justice Department aims to send poll monitors to all 50 states in the 2026 midterms, marking an ambitious expansion of a longstanding federal initiative aimed at ensuring election integrity.

— Emily Hallas, The Washington Examiner, 24 Oct. 2026

Definition of ensure

Verb

Adding to the uncertainty, Israel's election appeared headed for a political stalemate, with neither Prime Minister Benjamin Netanyahu nor his main challenger, Gadi Eisenkot, securing a clear path to a governing majority.

— Lee Ying Shan, CNBC, 28 Oct. 2026
The exit polls suggested his opponents — led by Netanyahu’s chief rival, Gadi Eisenkot, who also rallied exuberant supporters in Tel Aviv early on Wednesday — could secure a solid majority in the next parliament.

— Giovanna Dell'Orto, Chicago Tribune, 28 Oct. 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

See all Nearby Words

Cite this Entry

Style

“Nail (down).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nail%20%28down%29. Accessed 30 Oct. 2026.

Copy Citation

Synonyms of nail (down)

verb

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

reticent

Popular in Grammar & Usage

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Pwn, Skibidi, Girlboss and Other Words Added to the 2026 Scrabble Dictionary

The Words of the Week - Oct. 30

12 Lovely and Unusual Words for the Natural World

Popular

How to Use 'Who' vs. 'Whom'

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes