Siding

Noun

 * 1) A building material which covers and protects the sides of a house or other building (called cladding in the UK).
 * Ugh. If there's one thing I can't stand it's cheesy vinyl siding.
 * 1)  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 unloading freight, or to allow two trains on a same track to meet (opposite directions) or pass (same direction).

Lumber

1. Finishing material nailed to the sheathing of wood frame buildings forming the exposed surface

Synonyms
railroad siding, sidetrack, lay-by

Verb
siding


 * Whenever he hears an argument, he can't help siding with one party or the other.
 * Whenever he hears an argument, he can't help siding with one party or the other.

Thesaurus
L, adobe, ashlar, bank, beam, billet, board, boarding, border, branch, brick, bricks and mortar, broadside, cable railway, cement, cheek, chop, clapboard, clinker, coast, cog railway, concrete, cord, cordwood, covering materials, deal, driftwood, el, electric railway, elevated, elevated railway, embankment, feeder, feeder line, ferroconcrete, firebrick, firewood, flag, flagstone, flank, flooring, gravity-operated railway, hand, handedness, hardwood, haunch, hip, horse railway, jowl, junction, laterality, lath, lath and plaster, lathing, lathwork, light railroad, line, log, lumber, main line, many-sidedness, masonry, metro, monorail, mortar, multilaterality, panelboard, paneling, panelwork, pavement, paving, paving material, plank, planking, plasters, plyboard, plywood, pole, post, prestressed concrete, profile, puncheon, quarter, rack railway, rack-and-pinion railway, rail, rail line, railroad, railway, roadbed, roadway, roofage, roofing, shake, sheathing, sheathing board, sheeting, shingle, shore, side, sideboard, sidetrack, slab, slat, softwood, splat, stave, stick, stick of wood, stone, stovewood, street railway, streetcar line, subway, switchback, temple, terminal, terminus, three-by-four, tile, tiling, timber, timbering, timberwork, track, tram, tramline, trestle, trolley line, trunk, trunk line, tube, turnout, two-by-four, underground, unilaterality, walling, weatherboard, wood