The thyrohyoid arch, also known as the hyothyroid membrane or ligament, refers to an important anatomical structure in the neck region. This arch connects the hyoid bone, a U-shaped bone in the throat, to the thyroid cartilage, the largest cartilage of the larynx or voice box. While "thyrohyoid arch" is the most commonly used term, it can be helpful to be acquainted with some synonyms, especially when studying or researching this area. Alternative names include the hyothyroid ligament, hyothyroid membrane, thyrohyoid ligament, and hyothyroid arch. Utilizing these synonymous terms will enhance understanding and facilitate communication when discussing the anatomy and physiology of the neck and larynx.