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casing

American  
[key-sing] / ˈkeɪ sɪŋ /

noun

  1. a case or covering; housing.

  2. material for a case or covering.

  3. the framework around a door or window.

  4. the outermost covering of an automobile tire.

  5. any frame or framework.

  6. a steel pipe or tubing, especially as used in oil and gas wells.

  7. a layer of glass that has been fused to an underlying layer of glass of a different color or of different properties.

  8. the thin, tubular membrane of the intestines of sheep, cattle, or hogs, or a synthetic facsimile, for encasing processed meat in making sausages, salamis, etc.

  9. Nautical. the walls surrounding a funnel.

  10. a channel created in a garment or other article to carry a drawstring or elastic, as by sewing a strip of cloth to the basic material with two parallel rows of stitches.


casing British  
/ ˈkeɪsɪŋ /

noun

  1. a protective case or cover

  2. material for a case or cover

  3. Also called: case.  a frame containing a door, window, or staircase

  4. the intestines of cattle, pigs, etc, or a synthetic substitute, used as a container for sausage meat

  5. the outer cover of a pneumatic tyre

  6. a pipe or tube used to line a hole or shaft

  7. the outer shell of a steam or gas turbine

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • undercasing noun

Etymology

Origin of casing

First recorded in 1565–75; case 2 + -ing 1

Vocabulary lists containing casing

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s unclear whether Combs and Tracy were targeted, or if the suspects were casing homes in the area.

From Los Angeles Times • Mar. 26, 2026

Police found a damaged wing mirror casing on the road and traced the serial number to Clarke-Samuel's vehicle.

From BBC • Mar. 3, 2026

The glitchy Permian plumbing is forcing producers to drill through zones of high pressure, fortify their wells with additional strings of casing, and use protective coating against corrosive saltwater.

From The Wall Street Journal • Dec. 26, 2025

They fanned out across the property, searching a small cave for a weapons cache and cautiously casing sleeping quarters.

From Los Angeles Times • Nov. 6, 2025

A piece of corn casing was stuck to the side of Sumac’s beak.

From "The Ugly One" by Leanne Statland Ellis