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 of casing

• 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

The headrest of the front passenger seat where Rocha was sitting was damaged, and several 9 mm cartridge casings were found near the Mansfield Highway and Seminary Drive intersection. —Harriet Ramos, Fort Worth Star-Telegram, 29 May 2026

Police found a man with multiple gunshot wounds lying outside, between two apartments, and bullet casings nearby. —Katie Langford, Denver Post, 28 May 2026

When the 2018 shooting happened in Cheltenham Township, one fired cartridge casing (FCC) was recovered from the scene and entered in the National Integrated Ballistic Information Network (NIBIN), officials said. —Tom Ignudo, CBS News, 28 May 2026

Police found casings from four different brands of ammunition in the area. —Mara H. Gottfried, Twin Cities, 28 May 2026

Word History

First Known Use

1791, in the meaning defined at sense 1

Rhymes for casing

• basing
• bracing
• chasing
• facing
• gracing
• lacing
• lasing
• pacing
• placing
• racing
• spacing
• tracing

Kids Definition

casing

noun

cas·​ing ˈkā-siŋ 

1

: something that encloses or surrounds

2

: a frame around a door or window opening