What does "siding" mean?

Siding: A side track, as a railroad; a turnout.

Additional senses

  1. 2.(Carp.) The covering of the outside wall of a frame house, whether made of weatherboards, vertical boarding with cleats, shingles, or the like.
  2. 3.(Shipbuilding) The thickness of a rib or timber, measured, at right angles with its side, across the curved edge; as, a timber having a siding of ten inches.

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