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.
 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.
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