Definition as Noun

• the outermost covering of a pneumatic tire
• the enclosing frame around a door or window opening
• the housing or outer covering of something

Definition as Noun

• bed linen consisting of a cover for a pillow

• case

• shell, case

• case, pillowcase, slip

• "the casings had rotted away and had to be replaced"

• "the clock has a walnut case"

• "the burglar carried his loot in a pillowcase"

• Casing vs case
• Casing vs shell
• Casing vs pillowcase
• Casing vs slip

• Pillow Slip vs case
• Pillow Slip vs shell
• Pillow Slip vs pillowcase
• Pillow Slip vs slip