What does "nail down" mean?

To finalize or secure something To establish something firmly or get definite agreement.

How do you use "nail down" in a sentence?

We need to nail down the details. They nailed down the contract. It's hard to nail down exactly what happened.

Phrasal Verb BritishAmericanAustralian ★★★★☆ Common Neutral

Meaning: To finalize or secure something

最终确定或落实某事

Finalizar o asegurar algo

最終決定する、確定させる

최종 결정하다, 확정짓다

To establish something firmly or get definite agreement.

牢牢确定某事或获得明确的同意。

Establecer algo de forma firme u obtener un acuerdo definitivo.

何かをしっかり確立する、または確実な合意を得る。

무언가를 확실하게 정하거나 명확한 합의를 얻다.

Base verb: nail

Particle: down

Separable: Yes — the object can go between the verb and particle

We need to nail down the details.
我们需要敲定细节
Necesitamos concretar los detalles
詳細を確定させる必要がある
세부 사항을 확정지어야 한다.
They nailed down the contract.
他们敲定了合同
Cerraron el contrato
契約を締結した
그들은 계약을 확정지었다.
It's hard to nail down exactly what happened.
很难确切地弄清发生了什么
Es difícil determinar exactamente qué pasó
何が起こったか正確に特定するのは難しい
정확히 무슨 일이 있었는지 특정하기 어렵다.

Context: finalizing, details, agreements

Tone: decisive

From securing something with nails.

Era: Modern

Generation: All ages

Social background: Universal