This house has two different colored sidingsA drawing of how a siding works
(countable) A material that covers the sides of buildings.
(countable) A second, shortrailroadtrack just to the side of the main railroad track. It is joined to the main track byswitches at one or both ends, and is used either for unloading items, or to let two trains on the same track to meet (opposite directions) or pass (same direction).
