dinner jacket

Noun

dinner jacket (plural dinner jackets)

1. (US, especially) A jacket, often white, corresponding to a tuxedo jacket.
   • Constant was fully dressed in blue-green evening shorts and a dinner jacket of gold brocade.1959, Kurt Vonnegut, chapter 2, in The Sirens of Titan, New York: Dial, published 2006, page 49
   • He was dressed in a gray dinner jacket and matching trousers.2012, Tan Twan Eng, chapter 10, in The Garden of Evening Mists, Hachette, page 126
2. (UK) The formal suit, typically black, that includes this type of jacket.
   • [They] sat in a pen in the corner, smoking cigarettes and reading magazines; four or five girls in black silk dresses and the same number of slight effeminate young men in dinner-jackets.1932, Nevil Shute, chapter 2, in Lonely Road
   • Mr Lackersteen was even wearing a dinner-jacket—white, because of the season—and was completely sober. The boiled shirt and piqué waistcoat seemed to hold him upright and stiffen his moral fibre like a breastplate.1934 October, George Orwell [pseudonym; Eric Arthur Blair], “Chapter 17”, in Burmese Days, New York, N.Y.: Harper & Brothers, Publishers, →OCLC

   Synonyms:

   black tie, penguin suit