Black-tie events are formal occasions where a certain dress code is required. However, there are several other words that can be used to describe this type of dress code. One of the most common alternatives is "formal attire", which generally means a suit and tie for men and a dress or gown for women. Other options include "eveningwear", "semi-formal", or "dressy". Some events may require more specific dress codes, such as "white-tie" for the most formal occasions or "cocktail attire" for a slightly less formal event. No matter what the terminology, it's important to dress appropriately for the occasion and abide by the specified dress code.