| Flagstone (n.) A flat stone used in paving, or any rock which will split into such stones. See stone. Thesaurus Entries Tarmac, Tarvia, adobe, ashlar, asphalt, bitumen, bituminous macadam, blacktop, brick, bricks and mortar, cement, clinker, cobble, cobblestone, concrete, covering materials, curb, curbing, curbstone, edgestone, ferroconcrete, firebrick, flag, flagging, flooring, gravel, kerb, kerbstone, lath and plaster, macadam, masonry, mortar, pavement, pavestone, paving, paving material, paving stone, plasters, prestressed concrete, road metal, roofage, roofing, siding, stone, tarmacadam, tile, tiling, walling, washboard | ![]() |