The Collaborative International Dictionary of English v.0.48:

Thoroughfare \Thor"ough*fare`\, n. [AS. [thorn]urhfaru.]
   1. A passage through; a passage from one street or opening to
      another; an unobstructed way open to the public; a public
      road; hence, a frequented street.
      [1913 Webster]

            A large and splendid thoroughfare.    --Motley.
      [1913 Webster]

   2. A passing or going through; passage. [R.]
      [1913 Webster]

            [Made] Hell and this world -- one realm, one
            continent
            Of easy thoroughfare.                 --Milton.
      [1913 Webster]

WordNet (r) 3.0 (2006):

thoroughfare
    n 1: a public road from one place to another