to satisfy the needs of (a person, situation etc); be convenient to or right for (a person, thing); a set of articles of outer clothing of the same material (jacket, waistcoat and trousers; lawsuit; any of the four sets of playing-cards (spades, hearts, diamonds, clubs)
matching top and bottom clothing
Cases of word usage
1) a group of people in a larger group (e.g. a political party) with different views, often ones that suit their own interests (faction)
2) easily bent without breaking; (of plans etc) easily changed to suit new conditions (flexible)
3) in good order; neat and tidy; to make (something) neat and tidy, especially by taking or cutting away uneven, irregular or unwanted parts; to set (the sails of a boat) to suit the wind (trim)
4) (in card-games) each card of a suit that has been declared as having higher value (trump)
5) a close-fitting, sleeveless article of clothing worn under a jacket, especially as part of a man's suit (waistcoat)