earthEnglishOxford English Thesaurusearth noun 1 the moon moves in its orbit around the earth: world, globe, planet, sphere, orb. 2 he felt an infinitesimal trembling of the earth: land, ground, dry land, solid ground, terra firma; floor. 3 the blades ploughed gently into the soft earth: soil, topsoil, loam, clay, silt, dirt, sod, clod, turf; ground, terrain. 4 the fox ran back to its earth: den, lair, sett, burrow, warren, tunnel, hole, cave; retreat, shelter, hideout, hideaway, hiding place; habitation; informal hidey-hole.word linksearthgeo- related prefixterrestrial, telluric relating to the earthgeography, geology, geochemistry, geomorphology study of the earthearth Oxford Dictionary of English