Translation guide
The metal aluminum. In Japanese, it is almost always referred to as アルミ (arumi), a loanword from English. The full form アルミニウム is also used, especially in formal or scientific contexts.
Referring to the lightweight, silvery metal used in cans, foil, construction, etc.
The most common and natural way to say 'aluminum' in everyday Japanese. Used in compounds like アルミ缶 (aluminum can) and アルミホイル (aluminum foil).
This can is made of aluminum.
The full form, used in formal, scientific, or technical contexts. Less common in daily conversation.
Buy some aluminum foil.
Aluminum is lightweight and corrosion-resistant.