Dinner jackets are a type of formal attire typically worn for evening events. They are often referred to as tuxedos or black tie attire in American English. However, in British English, they may also be called dinner suits or evening suits. Other synonyms for dinner jackets include formal wear, evening wear, dress coats, and tailcoats. While the basic design of a dinner jacket remains consistent, some styles may differ in terms of lapel size, number of buttons, and overall fit. The appropriate term for this formal wear may vary depending on the region and occasion, but the purpose remains the same - to dress for a formal event.