Source : Webster's Revised Unabridged Dictionary (1913)

Northeast \North`east"\, n.
   The point between the north and east, at an equal distance
   from each; the northeast part or region.

Northeast \North`east"\, a.
   Of or pertaining to the northeast; proceeding toward the
   northeast, or coming from that point; as, a northeast course;
   a northeast wind.

   {Northeast passage}, a passage or communication by sea
      between the Atlantic and Pacific oceans along the north
      coast of Asia.

Northeast \North`east"\, adv.
   Toward the northeast.

Source : WordNet®

northeast
     n 1: the compass point midway between north and east; at 45
          degrees [syn: {nor'-east}, {NE}]
     2: the northeastern region of the United States [syn: {northeastern
        United States}]

northeast
     adv : to, toward, or in the northeast [syn: {north-east}, {nor'-east}]

northeast
     adj 1: situated in or oriented toward the northeast; "the
            northeasterly part of the island" [syn: {northeastern},
             {northeasterly}]
     2: coming from the northeast; "northeasterly winds" [syn: {northeasterly}]