1. an outer cover: a shell casing; a tire casing.
2. the frame or framework for a window or door.
3. A metal pipe or tube used as a lining for a water, oil, or gas well.
4. A membranous case, often made of animal intestine, used to contain sausage or other processed meat.
5. A narrow passage for a rod or cord, as in a curtain or the waistband of a garment, made by folding over a small strip of fabric at its edge along its width and sewing it in place.

1. that which encloses or encases.
2. the collective states of upper and lower case letters.
3. present participle of case.

1. the act or process of inclosing in, or covering with, a case or thin substance, as plaster, boards, etc.
2. an outside covering, for protection or ornament, or to precent the radiation of heat.
3. an inclosing frame; esp. the framework around a door or a window. see case, n., 4.

1. the act or process expressed by the verb case.
2. A case; a covering; an inclosure.
3. the process of putting tobacco leaf into the desired ‘case’ or condition, namely by moistening, and adding the ingredients used to give flavor, etc. see case, n., 9.

1. the housing or outer covering of something
2. the outermost covering of a pneumatic tire
3. the enclosing frame around a door or window opening