Tidy  —adj. (-ier, -iest) 1 neat, orderly. 2 (of a person) methodical. 3 colloq. Considerable (a tidy sum). —n. (pl. -ies) 1 receptacle for holding small objects etc. 2 esp. Us cover for a chair-back etc. —v. (-ies, -ied) (also absol.; often foll. By up) put in good order; make (oneself, a room, etc.) Tidy.  tidily adv. Tidiness n. [originally = timely etc., from *tide]