casing

1 of 2

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

casing

2 of 2

present participle of case entry 3

Synonyms of casing

Noun

• sheath
• housing
• covering
• shell
• case

Examples of casing in a Sentence

Noun

a casing for a shotgun shell

the egg of this bird has an unusually hard casing

Recent Examples on the Web

Noun

Regularly lowering sonar tools and mechanical sensors allows operators to map shifting cavern walls, track structural shrinkage, and inspect steel casings and cement seals for fractures. — Siddharth Misra, Fortune, 25 Aug. 2026

Five bullet casings were recovered from the scene, where Hernandez-Lopez was pronounced dead. — Angel Saunders, PEOPLE, 25 Aug. 2026

Officers found around a dozen shell casings in the home’s living room. — Caroline Zimmerman, Kansas City Star, 24 Aug. 2026

Tubes from hospital equipment were still attached to his face, gunshot wounds on his right side were still gaping, and tattoos which included a gun and a bullet casing were still embedded in his skin, a permanent memorial to the tools of his demise. — Andy Rose, CNN Money, 22 Aug. 2026

Word History

First Known Use

Noun

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