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black-tie

adjective

Definition of black-tie

:characterized by or requiring the wearing of semiformal evening clothes consisting of a usually black tie and tuxedo for men and a formal dress for women
  • a black-tie dinner
— compare white-tie

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First Known Use of black-tie

1933

black tie

noun

Definition of black tie

:semiformal clothing
  • gentlemen in black tie for the banquet

First Known Use of black tie

1951

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