Tuxedo, in its full form, is the quintessential formal wear for men. The word "tux" is a casual and commonly used abbreviation for it. While "tux" is a well-known term for the attire, there are various synonyms to describe it. The most popular synonym for tux is a "black tie." Other synonyms for tux include dinner jacket, tailcoat, formal suit, evening suit, or just simply formal attire. These words all refer to the same type of outfit that is traditionally worn on upscale occasions, dinner parties, weddings, and formal events that call for a polished, dressed-up look.