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

Authorities uncovered 12 bullet casings in the area of the killing. —Caelyn Pender, Mercury News, 14 May 2026

Power said members of the Detective Division responded to the scene and found several bullet holes on the outside of the building as well as several expended shell casings in the parking lot. —Justin Muszynski, Hartford Courant, 13 May 2026

Public Safety said that the Mobile Crime Unit responded to the scene to process evidence, recover shell casings, and review camera footage that might have captured the deadly incident. —Mike Darnay, CBS News, 12 May 2026

The large blue pad and contrasting white casing make the button easy for dogs to spot against a wall. —Maryna Holovnova, New Atlas, 12 May 2026

Word History

First Known Use

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