| Topsoil (n.) The upper layer of soil; surface soil. Thesaurus Entries acres, alluvion, alluvium, arable land, band, bed, bedding, belt, clay, clod, couche, course, crust, deck, dirt, dry land, dust, earth, floor, freehold, gallery, glebe, grassland, ground, land, landholdings, layer, ledge, level, lithosphere, marginal land, marl, measures, mold, overlayer, overstory, real estate, real property, region, regolith, seam, shelf, sod, soil, stage, step, story, stratum, subaerial deposit, subsoil, substratum, superstratum, terra, terra firma, terrain, territory, the country, thickness, tier, underlayer, understory, understratum, woodland, zone |