Though not part of a suit, a shirt and tie very frequently accompany it.
Originating in formal 19th century middle-class modes of dress, suits traditionally clothe males. However, imitations of the male uniform have also become common in formal attire for females in the workplace and elsewhere: in this case a matching skirt may substitute for trousers.
The uniform impression of a suit, often appearing in standard configurations such as pinstripe suit or suit and tie, may carry connotations of staid respectability, unadventurous conformism and narrow_mindedness.
An alternate use of the word as a references to management staff in corporations as "suits" may express contempt for the perceived absence of autonomy seen as imposed on members in a uniform elitist bureaucracy. It may also be a comment on the perceived amorality or even immorality of those who work for corporations.
A suit is generally accompanied by a collared shirt and tie (for men), or a blouse (for women).
This "sack suit" (now called a "lounge suit" in Great Britain or a "businesssuit" in North America) became informal daywear for all men who were not engaged in physical labor.
The type of shirt worn by men with a suit is a top made of woven cloth, with long sleeves, a full-length buttoned opening down the front, and a collar; this type of garment is known in American English as a dress shirt but simply as a shirt in other English dialects.