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

• sheath
• housing
• covering
• shell
• case

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

Officials said deputies found multiple shell casings at the scene and later learned that four other gunshot victims checked into area hospitals. —Ryan Gaydos, FOXNews.com, 20 July 2025

Investigators found multiple shell casings at the apartment complex and a .45 caliber gun in the wrecked car. —Craig Shoup, Nashville Tennessean, 18 July 2025

Officers found eight shell casings from a semi-automatic weapon next to the victim, suggesting she was shot at close range and was likely the intended target, Small said. —Muri Assunção, New York Daily News, 18 July 2025

Working with the Miami Gardens and Miami Beach police departments, detectives linked the gun used in the shooting back to Warren Pollock through shell casings from a shooting that took place in 2021 in Miami Gardens. —Shira Moolten, Sun Sentinel, 18 July 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