The phrase refers to a type of semi-formal evening event, primarily distinguished by a specific dress code. For men, this typically involves a tuxedo jacket, matching trousers, a white dress shirt, a black bow tie, black formal shoes, and optional accessories such as a cummerbund or waistcoat. Women’s attire generally consists of an evening gown, cocktail dress, or dressy separates, often paired with elegant heels and jewelry. Adherence to these conventions demonstrates respect for the occasion and the host.
This sartorial standard carries a significance beyond mere aesthetics. Its consistent application across events fosters a sense of uniformity and elegance. The dress code signals a certain level of formality and importance, indicating that the occasion merits special attention. Historically, it evolved as a less formal alternative to white tie, offering a refined yet approachable option for evening social gatherings. The continued prevalence of this dress code reflects its enduring appeal and its ability to convey a sense of sophistication.