waistcoat

/ˈweɪstkoʊt/
noun
  1. A sleeveless piece of clothing worn over a shirt and under a jacket, often as part of a suit.
    • She liked the vintage look of a patterned waistcoat over a plain shirt.
    • The tailor measured him for a new waistcoat.
    • He wore a gray waistcoat with his suit for the wedding.
Synonyms
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