Definition of "siding"

siding¹

/ˈsaɪdɪŋ/

noun
countable and uncountable, plural sidings
1. (Canada, US) A building material which covers and protects the sides of a house or other building.

siding²

/ˈsaɪdɪŋ/

verb
1. present participle and gerund of side

siding³

/ˈsaɪdɪŋ/

noun
plural sidings
1. (rail transport) A second, relatively short length of track just to the side of a railroad track, joined to the main track by switches at one or both ends, used either for loading or unloading freight, storing trains or other rail vehicles; or to allow two trains on a same track to meet (opposite directions) or pass (same direction) (the latter sense is probably an American definition).
  Quotations
  They slept where they could, sometimes in an empty truck on a siding near the station, sometimes in a cart behind a warehouse; [...]
  1919, W[illiam] Somerset Maugham, “chapter 47”, in The Moon and Sixpence, [New York, N.Y.]: Grosset & Dunlap Publishers […]
  Laid out over six square kilometres, Sellafield is like a small town, with nearly a thousand buildings, its own roads and even a rail siding – all owned by the government, and requiring security clearance to visit.
  December 15 2022, Samanth Subramanian, “Dismantling Sellafield: the epic task of shutting down a nuclear site”, in The Guardian‎