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Definitions

nail down

NOUN
establish conclusively
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She gave them until early May to nail down a plan, otherwise they’d stick with the existing part.

From The Wall Street Journal • May 5, 2026

When Rupert’s children watched its too-close-for-comfort version of the chaos following Logan Roy’s sudden death, they leapt to nail down their family’s succession plan before it was too late.

From Salon • Mar. 14, 2026

The death toll in Iran has been difficult to nail down, but Iran’s ambassador to the U.N. on Friday put the number at more than 1,300.

From Los Angeles Times • Mar. 8, 2026

Instead, nail down the parts that are boring.

From Barron's • Feb. 7, 2026

Vincent hopes to finally nail down drawing the human figure.

From "Vincent and Theo: The Van Gogh Brothers" by Deborah Heiligman




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