casing

1 of 2

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

casing

2 of 2

present participle of case entry 3

Synonyms of casing

Noun

• sheath
• housing
• covering
• shell
• case

Examples of casing in a Sentence

Noun

a casing for a shotgun shell

the egg of this bird has an unusually hard casing

Recent Examples on the Web

Noun

The wells needed wider diameters (wider casing) and slickwater fracking, not gelled fluids, to sustain enough pressure to produce ample gas flows. — Jordan Blum, Fortune, 10 Oct. 2026

The casing is consistent with the same caliber of weapon that Jones had in his possession when police took him into custody, a Fort Worth Police Department homicide unit detective wrote in an arrest warrant affidavit. — Emerson Clarridge, Fort Worth Star-Telegram, 9 Oct. 2026

According to court documents, Poindexter’s DNA was identified on shell casings found near the shooting. — Kansas City Star, 9 Oct. 2026

Investigators recovered 146 shell casings inside the building and dozens more outside, where Hasan shot at the backs of soldiers fleeing toward the parking lot. — Konstantin Toropin, Los Angeles Times, 8 Oct. 2026

Word History

First Known Use

Noun

1791, in the meaning defined at sense 1

Rhymes for casing

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

Kids Definition

casing

noun

cas·​ing ˈkā-siŋ 

1

: something that encloses or surrounds

2

: a frame around a door or window opening