aluminium foil

US /əˈluːmɪnəm fɔɪl/
UK /əˈluːmɪnəm fɔɪl/
"aluminium foil" picture
1.

a thin sheet of aluminum, used for wrapping and cooking food

:
Wrap the leftovers tightly in aluminium foil.
She covered the baking dish with aluminium foil before putting it in the oven.