casing

noun

cas·​ing ˈkā-siŋ 

1

: something that encases : material for encasing: such as

a

: an enclosing frame especially around a door or window opening

b

: a metal pipe used to case a well

c

: tire entry 2 sense 1

d

: a membranous case for processed meat

2

: a space formed between two parallel lines of stitching through at least two layers of cloth into which something (such as a rod or string) may be inserted

Synonyms of casing

• sheath
• housing
• covering
• shell
• case

Examples of casing in a Sentence

a casing for a shotgun shell

the egg of this bird has an unusually hard casing

Recent Examples on the Web

Remove the casings from the sausage, crumble it in bite-sized chunks and add to the pan along with diced onions. —Gretchen McKay, Boston Herald, 18 Mar. 2026

The casing comes in the same colors with a speckled effect made from the Volt color. —James Peckham, PC Magazine, 18 Mar. 2026

The items included spent bullet casings, ammunition boxes, cell phones and radios and a flash bang device. —Jacqueline Charles, Miami Herald, 17 Mar. 2026

Numerous shell casings were recovered at the scene. —Harry Harris, Mercury News, 16 Mar. 2026

Word History

First Known Use

1791, in the meaning defined at sense 1

Rhymes for casing

• basing
• bracing
• chasing
• facing
• gracing
• lacing
• pacing
• placing
• racing
• spacing
• tracing
• debasing

Kids Definition

casing

noun

cas·​ing ˈkā-siŋ 

1

: something that encloses or surrounds

2

: a frame around a door or window opening