The Collaborative International Dictionary of English v.0.48:

Through \Through\, a.
   Going or extending through; going, extending, or serving from
   the beginning to the end; thorough; complete; as, a through
   line; a through ticket; a through train. Also, admitting of
   passage through; as, a through bridge.
   [1913 Webster]

   Through bolt, a bolt which passes through all the thickness
      or layers of that which it fastens, or in which it is
      fixed.

   Through bridge, a bridge in which the floor is supported by
      the lower chords of the tissues instead of the upper, so
      that travel is between the trusses and not over them. Cf.
      Deck bridge, under Deck.

   Through cold, a deep-seated cold. [Obs.] --Holland.

   Through stone, a flat gravestone. [Scot.] [Written also
      through stane.] --Sir W. Scott.

   Through ticket, a ticket for the whole journey.

   Through train, a train which goes the whole length of a
      railway, or of a long route.
      [1913 Webster]