"Operagoer" refers to a person who frequently attends operas. However, there are several other terms that can be used in place of it. These include "opera enthusiast," "opera lover," and "opera connoisseur." For individuals who appreciate classic operatic performances, "classical music enthusiast" or "music lover" can also be used. For opera singers, "opera performer" or "soprano/tenor/baritone/bass" would suffice. Additionally, "culture buff" or "arts buff" are broader terms that encompass a wider range of artistic endeavors, including opera, ballet, theater, and other cultural events. Ultimately, the term used will depend on the context and interests of the individual being described.