1 : playing card in any of four sets of 13 cards in a pack; each set has its own symbol and color; "a flush is five cards in the same suit"; "in bridge you must follow suit"; "what suit is trumps?"
2 : a set of garments (usually including a jacket and trousers or skirt) for outerwear all of the same fabric and color; "they buried him in his best suit"
3 : a man's courting of a woman; seeking the affections of a woman (usually with the hope of marriage)
