nail down

他動詞慣用表現

(transitive) to attach with nails / (idiomatic, transitive) to make something (e.g. a decision or plan) firm or certain

日本語の意味

釘で打ち付ける / 決定や計画などを確定する

Please nail down the loose boards before the storm.

嵐が来る前に、緩んだ板を釘でしっかり留めてください。

意味（1）

(transitive) to attach with nails

Nail down the shelf, then paint it.

意味（2）

(idiomatic, transitive) to make something (e.g. a decision or plan) firm or certain

They haven't nailed down their vacation plans yet.

nails down

（ present singular third-person ）

nailing down

（ participle present ）

nailed down

（ participle past ）

nailed down

（ past ）