The inferior vocal fold is a crucial part of the human voice box that helps produce sound. However, there are various synonyms for this term that are used by medical professionals and laymen alike. They include the vocal cord, vocal membrane, glottis, and laryngeal muscle. While all of these words refer to the same structure, they are often used contextually to describe different aspects or functions of the inferior vocal fold. For instance, the term glottis is more commonly used to describe the opening between the vocal folds, while the term vocal membrane is often used to describe the actual tissue of the vocal fold. Whatever the terminology, understanding the anatomy of the inferior vocal fold is essential to maintaining and protecting the vocal health.