Translation guide
The outer covering, shell, or housing that encloses or protects something.
The physical outer layer or protective shell of an object, such as a machine, device, or structure.
A direct loanword from English, commonly used in technical or mechanical contexts for the outer casing of machinery, pipes, or equipment.
The thin, tubular material used to encase sausage filling, typically made from animal intestines or synthetic materials.
The steel pipe or structure lining a drilled well to prevent collapse and contamination.
ケーシング is the safest choice for most technical and mechanical contexts, including machinery, pipes, and food processing. 外装 is better for consumer products where appearance matters, like electronics or cars. 筐体 is very specific to electronics enclosures.
エンジンのケーシングが破損した。
The engine casing was damaged.
Refers to the exterior covering or finish of a product, often used for consumer electronics, appliances, or vehicles. Emphasizes the outer appearance or shell.
このスマートフォンの外装はアルミニウム製です。
The casing of this smartphone is made of aluminum.
A technical term for the housing or chassis of electronic devices, computers, or industrial equipment. Often used in engineering contexts.
パソコンの筐体を開けて内部を掃除した。
I opened the computer casing and cleaned the inside.
A general word for a cover or covering, but can be used for a casing that envelops something. Less specific and more casual than technical terms.
機械に覆いをかけて保護した。
I put a casing over the machine to protect it.
The same loanword is used specifically for sausage casings in food industry contexts.
ソーセージのケーシングは羊の腸から作られることが多い。
Sausage casings are often made from sheep intestines.
An older term for sausage, literally 'intestine stuffing', which can imply the casing itself in traditional contexts. Rarely used in modern Japanese.
昔ながらの腸詰めは天然のケーシングを使っている。
Traditional sausages use natural casings.
Used in petroleum, gas, and water well engineering. The standard technical term.
油井のケーシングは腐食に強い素材で作られる。
Oil well casings are made of corrosion-resistant materials.
Literally 'well frame', can refer to the casing of a water well in non-technical contexts. Less precise than ケーシング.
井戸枠が老朽化して水が濁った。
The well casing deteriorated and the water became muddy.