"Arbiter elegantiarum" is a Latin term that refers to a person who is an authority in matters of taste and fashion. Perhaps the most common synonym for this term is "fashion guru". Other synonyms include "taste-maker", "style expert", "fashion influencer" and "trendsetter". These terms all refer to someone who is respected for their ability to recognize and promote fashionable and stylish trends, whether in clothing, furniture, or other areas of design. These individuals are frequently sought out by others seeking guidance on how to dress and decorate in a fashionable way. Whatever term is used, the implication is clear: an arbiter elegantiarum is someone who has a keen eye for what is fashionable and stylish, and who is looked up to by others for guidance in this area.