Definition

Noun: A set of formal men's clothing, traditionally for business or professional settings, consisting of three matching items: a jacket, a waistcoat (vest), and trousers (pants).

Usage

This term refers specifically to the complete, coordinated ensemble of three garments made from the same fabric. It is considered more formal than a two-piece suit (jacket and trousers only).

Examples

• He wore a classic grey three-piece suit to the important board meeting.
• For his wedding, he chose a traditional three-piece suit with a patterned waistcoat.
• The style of the three-piece suit has evolved over the decades.

Advanced Usage

• The term can be used attributively (like an adjective) before another noun.
  • He has a three-piece-suit style, even on casual Fridays.

Variants and Related Words

• Two-piece suit (n): A business suit consisting of only a jacket and trousers, without a waistcoat.
• Waistcoat (n)/Vest (n): The sleeveless garment that is the third piece of the suit. ("Waistcoat" is more common in British English, "vest" in American English).
• Lounge suit (n): Another term for a business suit.

Synonyms

• Business suit (though this can also refer to a two-piece suit)
• Lounge suit (primarily British English)

Antonyms

• Two-piece suit
• Casual wear
• Sportswear

Noun

1. a business suit consisting of a jacket and vest and trousers