Bedeutung von “foil” — Learner’s Dictionary

foil

noun us uk /fɔɪl/

[ U ] metal made into very thin sheets like paper and used mainly for covering food:

UK aluminium foil/ US aluminum foil
a foil for sb/sth

a person or thing that shows or emphasizes how different someone or something else is

(Definition von “foil noun” aus dem Cambridge Learner's Dictionary © Cambridge University Press)