The word "siter" does not exist in the English language, and therefore, there are no synonyms for it. However, if the intended word is "Sifter," some synonyms could be "strainer," "sieve," "colander," or "filter." These words all describe a tool or device used to separate solids from liquids or to break up clumps in a material. When cooking, sifting flour or sugar can ensure a smoother texture in baked goods. In gardening, a compost sifter or soil sieve can help remove rocks and debris from soil. By using a sifter, you can achieve a more refined end product.