A theme party is an event that brings together people who share similar interests and ideas. It is characterized by a specific theme that sets the tone for the gathering. However, there are different words or phrases that can be used to describe a theme party, depending on the occasion. For instance, costume party, gala, masquerade ball, fancy dress, or fancy-dress party is a type of celebration where guests dress up in costumes. A murder mystery is a type of interactive party where guests are assigned roles and solve the crime. Other synonyms for theme party include holiday party, Christmas party, birthday party, and anniversary party, among others.