nail down
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English[edit]
Pronunciation[edit]
Audio (AU) (file)
Verb[edit]
nail down (third-person singular simple present nails down, present participle nailing down, simple past and past participle nailed down)
- (transitive) to attach with nails
- Nail down the shelf, then paint it.
- (idiomatic, transitive) to make something (e.g. a decision or plan) firm or certain
- They haven't nailed down their vacation plans yet.