Definition

1. Verb (transitive):
   • To make something final or complete; to put the last touches on something: To finish or settle the details of something so that it is definite and complete.
   • To define or specify something clearly and precisely: To remove ambiguity by stating something in exact terms.
   • To succeed in obtaining or securing something, often after effort: To achieve or secure a position, agreement, or deal.

Usage Examples

• Verb:
  • We need to nail down the details of the contract before we can sign it. (We need to finalize the specific terms.)
  • The scientists are trying to nail down the exact cause of the phenomenon. (The scientists are trying to define the cause precisely.)
  • After a great interview, she nailed down the job offer. (She successfully secured the job offer.)

Advanced Usage

• "to nail something down": Often used to emphasize the act of making something certain, definite, or secure.
  • The team nailed their strategy down before the big game. (The team finalized their strategy completely.)
• Used in business, legal, academic, and planning contexts to indicate finalization or precise specification.

Variants and Related Words

• Finalize (verb): To complete the final part of a plan or agreement. (Closely related to the first meaning.)
• Pin down (phrasal verb): To force someone to be specific or to understand something precisely. (Similar to the second meaning.)
• Secure (verb): To obtain or lock in possession of something. (Similar to the third meaning.)

Synonyms

• Finalize: To put into final form.
• Specify: To state precisely or in detail.
• Clinch: To settle (a matter) conclusively.
• Lock in: To make something certain or secure.

Related Phrasal Verbs

• Nail something down: This is the primary phrasal verb. Its meaning depends on the object.
  • Nail down a date (finalize/set a specific date).
  • Nail down a concept (define a concept clearly).
  • Nail down a victory (secure a victory conclusively).

Related Idioms

• "To nail one's colors to the mast": To declare one's beliefs or intentions openly and firmly. (This idiom shares the concept of making a firm, definite commitment, similar to "nail down" a position.)
• "Hit the nail on the head": To describe exactly what is true or what is needed. (This idiom shares the concept of precise accuracy, related to the "define clearly" meaning of "nail down".)

Verb

1. make final; put the last touches on; put into final form
   • let's finalize the proposal
2. define clearly
   • I cannot narrow down the rules for this game
3. succeed in obtaining a position
   • He nailed down a spot at Harvard