casing

noun
UK /ˈkeɪsɪŋ/
US /ˈkeɪsɪŋ/

A casing is a cover that goes around something to protect it.

The sausage is stuffed into a thin casing.


OTHER MEANINGS

2. The outer tire of a bicycle or car.

He replaced the worn casing on his bike wheel.

3. A frame around a door or window.

The carpenter fitted a new wooden casing around the window.

4. The structure of a building that is not yet finished inside.

Workers finished the casing before starting the interior.