nail down meaning and definition

NAIL DOWN verb

Definition of nail down (verb)

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