cas·​ing | \ˈkā-siŋ \

Definition of casing 

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

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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

Its face is made of a white plastic casing and two cameras. Erin Biba, Popular Mechanics, "Robot, You Can Drive My Car," 8 Aug. 2018 Prosecutors presented evidence during the trial of a bag with a bullet, shell casings and a bloody glove that matched DNA belonging to Chinika Hursey and Campbell. Pamela Wood,, "Baltimore County man sentenced to life in prison in killing of ex-wife and her boyfriend," 10 July 2018 Chicago police found shell casings and bullet holes in an 2007 Toyota FJ Cruiser. Will Campbell, idahostatesman, "Path of a gun: Weapon used in Chicago shooting traced back to Idaho pawn shop," 4 July 2018 Police recovered a revolver in a storm drain outside the home, and found five live rounds and one spent shell casing inside the cylinders of the gun. Nicholas Rondinone,, "Attorney For Accused Killer Noah Hendron Requests Probable Cause Hearing," 10 Jan. 2018 This method allows the operator to explode part or all of the high explosive contained in the bomb casing. Kyle Mizokami, Popular Mechanics, "The Air Force Wants Adjustable Bombs That Can Unleash a Lot of Hell—or Just a Little," 24 Sep. 2018 Sure, the translucent navy blue casing seemed pretty cool to look at, and the limited run of 50,000 units gives the unit a collectible cachet. Kyle Orland, Ars Technica, "Unboxing Sony’s “500 Million Limited Edition PS4 Pro”," 21 Aug. 2018 Shell casings from a 5.56 caliber rifle and .45 caliber handgun were found on the road. Michael Williams,, "Code words, YouTube videos and shell casings lead Sanford police to homicide suspect," 7 July 2018 Two shell casings were found at the scene by police. Elliot Hughes, Milwaukee Journal Sentinel, "Drug deal gone bad leads to shots fired, pistol whipping in Oak Creek," 13 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'casing.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of casing

1791, in the meaning defined at sense 1

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Statistics for casing

Last Updated

6 Dec 2018

Look-up Popularity

Time Traveler for casing

The first known use of casing was in 1791

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More Definitions for casing



English Language Learners Definition of casing

: a layer on the outside of something that covers and protects it

: a frame around a door or window


cas·​ing | \ˈkā-siŋ \

Kids Definition of casing

: something that covers or encloses sausage casings

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More from Merriam-Webster on casing

Rhyming Dictionary: Words that rhyme with casing

Thesaurus: All synonyms and antonyms for casing

Spanish Central: Translation of casing

Nglish: Translation of casing for Spanish Speakers

Britannica English: Translation of casing for Arabic Speakers

Comments on casing

What made you want to look up casing? Please tell us where you read or heard it (including the quote, if possible).


the figure or shape of a crescent moon

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