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

Officers reported recovering 36 shell casings from the backyard. —Gael Langdon, Arkansas Online, 28 Apr. 2025

Investigators found several bullet casings from both .40 caliber and 9mm handguns in the field, according to their report. —David Goodhue, Miami Herald, 23 Apr. 2025

Another student was detained in December after being found with body armor, armored plates, bullet casings and other equipment in his university dormitory. —Josh Hammer, MSNBC Newsweek, 21 Apr. 2025

To tackle the problem, this new type of plastic casing dissolves in water in just a few hours. —Daniel Wine, CNN Money, 7 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