Vocalion is a term used to describe a particular type of phonograph record that was popular in the early 20th century. However, this term has several synonyms that can be used to describe this type of record. Some of these synonyms include "gramophone record," "78 RPM record," and "shellac record." Each of these terms refers to the same type of disc record that was used to store audio recordings in the early part of the 20th century. While the term vocalion has fallen out of use in modern times, these synonyms remain useful for historians and collectors who are interested in the early days of recorded sound.