1. (p. pr.& vb. n.) of Side.

2. (n.) Attaching one's self to a party.

3. (n.) A side track, as a railroad; a turnout.

4. (n.) The covering of the outside wall of a frame house, whether made of weatherboards, vertical boarding with cleats, shingles, or the like.

5. (n.) 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.

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