aluminum

The word “aluminum” means the American, Canadian, and Philippine spelling of aluminium, the lightweight silvery metal. In plain terms, the North American spelling of the metal known elsewhere as aluminium.

“Aluminum” is pronounced al-uu-MIHN-yuhm (/əˈlu.mɪ.nəm/ in IPA).

Here is “aluminum” used in a sentence: “The pan is made of aluminum for even heating.”

“Aluminum” is a noun.

The word “aluminum” dates back to around 1812. Coined by British chemist Humphry Davy in 1812, from an earlier form "alumium.".

“Aluminum” is a fairly common word in modern English, usually learned at around the B2 level.

Both are correct; they are regional spellings of the same lightweight, silvery metal. Aluminum is standard in the United States, Canada, and the Philippines, while aluminium is used in Britain and most other English-speaking countries and is the usual spelling in international scientific writing.

Both spellings arose in the early nineteenth century, when the newly identified element went through several proposed names. American English settled on aluminum, while British English preferred aluminium to match other element names ending in -ium, such as sodium and potassium. Neither spelling is a mistake; they simply became standard in different regions.

In modern kitchens, yes — the foil sold today is made of aluminum, and 'tin foil' survives as an informal leftover from the era when household foil really was made of tin. Aluminum long ago replaced tin as the foil-making metal, so calling it tin foil is technically out of date but universally understood.

Aluminum is a lightweight, silvery metal — the same element the British call aluminium. It is the most abundant metal in the Earth's crust and is valued for combining low weight with good strength and corrosion resistance, which is why it appears in everything from drinks cans to aircraft.