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

• armor
• capsule
• case
• cocoon
• cover
• covering
• encasement
• housing
• hull
• husk
• jacket
• pod
• sheath
• shell

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

Later at the scene, two shell casings could be seen on the ground with evidence markers nearby. —Kerry Burke, New York Daily News, 9 May 2025

Samsung’s base level models typically have casings only slightly larger than the screen itself. —Andrew Williams, Forbes.com, 9 May 2025

Analysis conducted by the National Integrated Ballistic Information Network connected the pistol to shell casings that were collected following a shooting on Winchester Avenue in New Haven on Nov. 8, 2023, and a shooting on Hazel Street in New Haven on Nov. 12, 2023, court records show. —Kellie Love, Hartford Courant, 7 May 2025

Wooden casings or cloth shrouds were found in a few graves. —Irene Wright, Miami Herald, 30 Apr. 2025

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