Black-tie (noun)

1. A formal dress code for evening events, characterized by men wearing black bow ties and black tuxedos, and women wearing formal evening gowns.
2. A formal event that requires guests to wear formal attire, typically including a black bow tie and black tuxedo for men, and a formal evening gown for women.

Origin:

The term black-tie is an adjective-noun combination that describes a formal dress code for evening events. the dress code is characterized by men wearing black bow ties and black tuxedos. the term was first recorded in english in the early 20th century.

Examples:

1. The invitation specified that the event was black-tie.
2. He wore a black-tie tuxedo to the gala.
3. The black-tie event was a fundraiser for the charity.
4. It was a black-tie event, the women were dressed in elegant evening gowns.
5. The black-tie event was a formal affair with live music and dancing.