1. a protective covering or container that encloses something
2. the frame around a door or window
Usage: construction
3. the outer skin of a sausage
Usage: culinary

Examples

• The phone’s plastic casing cracked when it hit the ground.
• We need to replace the wooden casing around the front door.
• The mechanic removed the engine casing to check the parts inside.
• The sausage casing was made from natural materials.
• She painted the window casing white to match the trim.
• The metal casing protected the delicate electronics from damage.