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 N N /ˈɛn/

noun

  1. The 14th letter of the Roman alphabet  ( N )
    the 14th letter of the Roman alphabet
  2. (of a solution) concentration expressed in gram equivalents of solute per liter  ( N , normality )
    (of a solution) concentration expressed in gram equivalents of solute per liter
  3. A unit of force equal to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram; equal to 100,000 dynes  ( N , newton )
    a unit of force equal to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram; equal to 100,000 dynes
  4. The cardinal compass point that is at 0 or 360 degrees  ( due north , N , northward , north )
    the cardinal compass point that is at 0 or 360 degrees
     The cold winds from the north signaled the beginning of winter.
    The cold winds from the north signaled the beginning of winter.
  5. A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues  ( atomic number 7 , N , nitrogen )
    a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
      Nitrogen is a gas that makes up a significant portion of the Earth's atmosphere.
    Nitrogen is a gas that makes up a significant portion of the Earth's atmosphere.