noun

tinfoil

aluminum foil, tinfoil

Wrap the chicken in tinfoil before roasting.

Wrap the chicken in aluminum foil before roasting.

((tinfoil)) a thin, flexible sheet of metal foil Cover the dish with tinfoil.

Synonyms: aluminum foil

From 'tin' (the metal) and 'foil' (a thin sheet of metal). Historically made of tin, now almost always aluminum.

While Americans almost exclusively say 'aluminum foil', 'tinfoil' is understood and is the common term in the UK. It's a key vocabulary difference.

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