What is the meaning of nail?

noun

• Horny plate covering and protecting part of the dorsal surface of the digits.
• A thin pointed piece of metal that is hammered into materials as a fastener.
• A former unit of length for cloth equal to 1/16 of a yard.

verb

• Attach something somewhere by means of nails.
  • usage: "nail the board onto the wall"
• Take into custody.
  • usage: "the police nabbed the suspected criminals"
  • synonyms: collar, apprehend, arrest, pick up, nab, cop
• Hit hard.
  • usage: "He smashed a 3-run homer"
  • synonyms: smash, boom, blast
• Succeed in obtaining a position.
  • usage: "He nailed down a spot at Harvard"
  • synonyms: nail down, peg
• Succeed at easily.
  • usage: "She sailed through her exams"; "You will pass with flying colors"; "She nailed her astrophysics course"
  • synonyms: breeze through, ace, pass with flying colors, sweep through, sail through
• Locate exactly.
  • usage: "can you pinpoint the position of the enemy"; "The chemists could not nail the identity of the chromosome"
  • synonyms: pinpoint
• Complete a pass.
  • synonyms: complete