Balneae, also known as ancient Roman baths, were a popular infrastructure that allowed the cleaning of the body and socializing with others. In addition to Balneae, there are many synonyms that also refer to such bath complexes. One such synonym includes "Thermae," which referred to baths that were grand public places equipped with various amenities such as saunas, swimming pools, and recreational facilities. Another synonym includes "Balnea Publica," referring to public baths that were open to everyone, regardless of social status. Also, "Balneum Privatum" referred to private baths that were only accessible by the wealthy. Other similar words for Balneae include "Lacus," which refers to an open-air water basin, and "Calidarium," which refers to a hot-water bath.