This is the 1129th most frequent Japanese word.
ケース
"Case" (e.g., container, instance, or situation).
ケース here refers to a container or box used for holding or transporting items.
このケースに入れれば、安全に運べます。
If you put it in this case, you can transport it safely.
ケース in this sentence means an instance or situation, often used in a general or hypothetical sense.
そのようなケースでは、早めに報告してください。
In such a case, report it as soon as possible.
ケース refers to a protective cover for an object, in this context, a mobile phone.