Aluminum foil – Definition & Meaning

Aluminum foil is a thin, flexible sheet made of aluminum that is used for wrapping, covering, and cooking food. It is a versatile material that has many uses in daily life, from preserving food to insulating buildings.


Aluminum foil is defined as a thin sheet of aluminum that is used for wrapping food, covering dishes, and other household uses. It is typically less than 0.2 mm thick and can be easily molded into different shapes.


Aluminum foil was first produced in Switzerland in 1910. It was initially used for wrapping chocolate bars and other food items to keep them fresh. In the 1940s, aluminum foil became popular in the United States for packaging cigarettes, and it was later used for food packaging and cooking.

Meaning in different dictionaries

According to the Merriam-Webster dictionary, aluminum foil is defined as “thin aluminum sheets used especially for cooking or wrapping food.” The Oxford English Dictionary defines it as “a thin sheet of aluminum used for wrapping or covering food.”


Aluminum foil is often associated with cooking and food preservation. It is also used in the construction industry for insulation and as a vapor barrier.


Some synonyms for aluminum foil include tin foil, silver foil, and kitchen foil.


There are no direct antonyms for aluminum foil, but alternatives for food wrapping and storage include plastic wrap, wax paper, and parchment paper.

The same root words

Aluminum foil is made from the metal aluminum, which is a chemical element with the symbol Al and atomic number 13.

Example Sentences

  1. I wrapped the leftovers in aluminum foil to keep them fresh.
  2. The insulation in the walls was made of aluminum foil.
  3. Can you pass me the roll of aluminum foil, please?.
  4. The chef used aluminum foil to create a makeshift roasting pan.
  5. The aluminum foil reflected the light, making the room brighter.
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