LEARNit Dictionary
nail down
phrasal verb
1
to fasten something in place with a nail or nails
محکم کردن با میخ, میخ کوبیدن, میخ زدن
2
to reach an agreement or a decision, usually after a lot of discussion
مشخص کردن, نهایی کردن, قطعی کردن, به توافق رسیدن
All the parties seem anxious to nail down a ceasefire.
3
to force somebody to give you a definite promise or tell you exactly what they intend to do
ملزم کردن, وادار کردن به تعهد دادن, متعهد کردن, مطالبه وعده قطعی
She says she'll come, but I can't nail her down to a specific time.