aluminum
The Spanish word 'aluminio' translates to 'aluminum' in English. Aluminum is a chemical element of the boron group with symbol Al and atomic number 13. It is a silvery-white, soft, non-magnetic, ductile metal. Aluminum is the third most abundant element (after oxygen and silicon), and the most abundant metal in the Earth's crust. It makes up about 8% of the Earth's solid surface by weight. 'Aluminio' is used in a similar context in Spanish.
Aluminium is a very light material.
This sentence is talking about the property of aluminium as a material, specifically referring to its light weight.
We recycle aluminium cans.
In this instance, the sentence is referring to the act of recycling and how it might apply to the object 'aluminium cans'.
This solar panel is made of aluminium.
Here, the sentence is highlighting the materials used in the construction of a solar panel, noting that it's made of aluminium.