Nail down

Pronunciation: /ˈneɪɫ ˈdaʊn/

Nail down (verb)

  1. To make something definite by checking details until you are sure.
  2. To fix an idea, plan, or result firmly so it cannot change easily.
  3. To identify the exact cause or reason of a problem after careful study.

Examples

  • We need to nail down the plan before we start.
  • She nailed down the details with the team.