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

Investigators recovered numerous pieces of evidence, including pieces of clothing, fired shell casings, DNA swabs and bullet fragments collected from Cherry’s body, according to the report. — Lillie Davidson, Fort Worth Star-Telegram, 31 July 2026

Prawn and black truffle dumplings are a joy, the shimmering black casings colored with charcoal powder and stuffed with toothsome shrimp. — Connie Ogle july 31, Miami Herald, 31 July 2026

Thirteen shell casings have been recovered, and investigators believe there were four handguns, police said in the document. — Joe Kottke, NBC news, 31 July 2026

Moore says from what he's heard from authorities, there was only one shell casing found inside the house. — Marissa Sulek, CBS News, 30 July 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