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
Detectives recovered 13 shell casings inside a Lee’s Summit gym where a shooting between two people during basketball open play injured one person Saturday, according to court documents.
—
Noelle Alviz-Gransee, Kansas City Star, 29 Dec. 2025
One of the casings was near the bed where the woman was found, and the other was underneath her.
—Nick Lentz, CBS News, 29 Dec. 2025
Ditto for chunky window casings.
—Zoe Gowen, Southern Living, 29 Dec. 2025
Three days later, investigators reportedly linked shell casings found at the scene of the November shooting in Kyle to the firearm seized from Herrera during his standoff with SWAT.
—Julia Bonavita, FOXNews.com, 26 Dec. 2025
See All Example Sentences for casing
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Noelle Alviz-Gransee, Kansas City Star, 29 Dec. 2025
One of the casings was near the bed where the woman was found, and the other was underneath her.
—Nick Lentz, CBS News, 29 Dec. 2025
Ditto for chunky window casings.
—Zoe Gowen, Southern Living, 29 Dec. 2025
Three days later, investigators reportedly linked shell casings found at the scene of the November shooting in Kyle to the firearm seized from Herrera during his standoff with SWAT.
—Julia Bonavita, FOXNews.com, 26 Dec. 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 31 Dec. 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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