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
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
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
Investigators determined that shell casings found at the scene of the double homicide were fired from the gun.
—
Kansas City Star, 30 Sep. 2025
Prosecutors said detectives found the Sub Compact 9mm handgun inside the satchel, which matches the caliber and bullet casing found at the scene of the shooting, adding that an empty magazine was found inside the handgun.
—Adam Sabes, FOXNews.com, 27 Sep. 2025
An endless stream of content parsed the meaning of the words and symbols on the bullet casings.
—Michelle Goldberg, Mercury News, 27 Sep. 2025
The animals mostly settled on the metal casings rather than the explosive material, likely reducing their exposure to harmful chemicals.
—Sujita Sinha, Interesting Engineering, 26 Sep. 2025
See All Example Sentences for casing
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Kansas City Star, 30 Sep. 2025
Prosecutors said detectives found the Sub Compact 9mm handgun inside the satchel, which matches the caliber and bullet casing found at the scene of the shooting, adding that an empty magazine was found inside the handgun.
—Adam Sabes, FOXNews.com, 27 Sep. 2025
An endless stream of content parsed the meaning of the words and symbols on the bullet casings.
—Michelle Goldberg, Mercury News, 27 Sep. 2025
The animals mostly settled on the metal casings rather than the explosive material, likely reducing their exposure to harmful chemicals.
—Sujita Sinha, Interesting Engineering, 26 Sep. 2025
See All Example Sentences for casing
Cite this Entry
“Casing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/casing. Accessed 6 Oct. 2025.
Copy CitationKids Definition
casing
noun
cas·ing
ˈkā-siŋ 
1
: something that encloses or surrounds
2
: a frame around a door or window opening
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