- a man's suit for formal evening dress, with tail coat and open-front waistcoat.
Origin of dress suit
First recorded in 1800–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dress suit
Placing his dress-suit case in the house, he walked down to the barn.From Farm to Fortune
Horatio Alger Jr.
And then Tom sent the dress-suit case after him; and the fun came to an end.The Rover Boys in the Air
Roberts: "I was trying to think where I'd put my dress-suit."Evening Dress
W. D. Howells
He would make it a dress-suit affair and give the little girl a chance.Sister Carrie
Beside him was a dress-suit case, and he looked as if he was ready to travel.The Boy from the Ranch
Frank V. Webster
- an ensemble of matching formal evening wear