canned food; tinned food — food preserved and sold in metal cans.
非常用に数缶の缶詰を備蓄しておくと安心だ。
It's reassuring to stock a few cans of food for emergencies.
スーパーでツナの缶詰を買ってサラダに使った。
I bought a can of tuna at the supermarket and used it in a salad.
登山のときは軽い缶詰の食料が便利だ。
Canned food that is lightweight is convenient when hiking.
confining someone (so they can concentrate on work etc.) — usually expressed as 缶詰にする.
編集部は作家を一週間缶詰にして小説を書かせた。
The editorial department confined the writer for a week to make them write the novel.
試験前は友人に家に缶詰にされ、集中して勉強した。
Before the exam, my friend kept me at home so I could concentrate and study.
プロジェクトの締切前はチーム全員がオフィスに缶詰にされた。
Before the project deadline, the whole team was confined to the office.
being stuck in a confined space; unable to go out — usually said as 缶詰になる.
大雪で鉄道が止まり、駅で缶詰になってしまった。
Heavy snow stopped the trains and we were stuck at the station.
入院していた間、ほとんど病室に缶詰になっていた。
While hospitalized I was mostly confined to my room.
締切前は家で缶詰になって原稿を書いた。
Before the deadline I stayed at home and worked nonstop on the manuscript.