Where does this definition of nail down come from?
This entry for nail down is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is nail down a noun, verb, or something else?
In this entry, nail down is tagged as 2v..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.