Here are all the answers to Wordscapes Level 638 in the Cover pack, Autumn group. The letters that players must unscramble in this level are USUCORA. This puzzle has 9 words as its answer and 37 bonus words.
arc, arco, arcus, ars, aurous, car, cor, cors, cos, cru, crus, cur, curs, oar, oca, ocas, ora, orc, orca, orcas, orcs, ors, osar, our, ras, roc, rocs, sac, sau, scaur, soca, sora, sou, soucar, sura, ursa, urus.