The Collaborative International Dictionary of English v.0.48:

Northeast \North`east"\, n.
   The point between the north and east, at an equal distance
   from each; the northeast part or region.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

   Northeast passage, a passage or communication by sea
      between the Atlantic and Pacific oceans along the north
      coast of Asia.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Northeast \North`east"\, adv.
   Toward the northeast.
   [1913 Webster]

WordNet (r) 3.0 (2006):

north-east
    adv 1: to, toward, or in the northeast [syn: northeast,
           north-east, nor'-east]