There are a variety of synonyms for the term "bath cubes", which refer to small, solid cubes of bath salts or other bath additives that dissolve in water and create a soothing or invigorating bath experience. Some alternative terms include bath fizzies, bath bombs, bath salts, and bath soaks. These products often contain essential oils, moisturizing ingredients, and fragrances that help to nourish the skin and promote relaxation. Bath cubes and their synonyms are popular among those seeking a spa-like experience at home, and can be found in a range of scents and formulations to suit different needs and preferences.