Suit is a term with various meanings:

• A lawsuit, an action brought before a court, as to recover a right or redress a grievance.
• Suit (clothing), a combination of clothing, such as a jacket and matching trousers,
• Environmental suit, a piece of clothing used for a particular activity or in a particular environment, for example a space suit or diving suit.
• Jumpsuit, catsuit, wetsuit, or swimsuit, a one-piece outfit.
• Suit (cards), one of four categories into which a deck of cards is divided.
• Slang for a professional, The Establishment, management or government employee, because they wear a suit (clothing). Used pejoratively by Beats, artists, and hackers to refer to anyone in a position of authority.
• Suit (album), the name of one of rapper Nelly's 2004 albums.
• Suits, the third album by Fish.
• Suit (comic), a fictional character in the marvel universe, appearing first in the Venom series.