aluminium foil
US /əˈluːmɪnəm fɔɪl/
UK /əˈluːmɪnəm fɔɪl/
1.
a thin sheet of aluminum, used for wrapping and cooking food
:
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Wrap the leftovers tightly in aluminium foil.
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She covered the baking dish with aluminium foil before putting it in the oven.