Foil
/fɔɪl/
noun
A very thin sheet of metal.
Thin aluminium/aluminum (or, formerly, tin) used for wrapping food.
“wrap the sandwich up in foil”
A thin layer of metal put between a jewel and its setting to make it seem more brilliant.
Synonyms: aluminium foil, silver foil, silver paper, tin foil
verb
To cover or wrap with foil.