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foil

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1foil/ˈfojəl/verb
foilsfoiledfoiling
1foil
/ˈfojəl/
verb
foilsfoiledfoiling
Learner's definition of FOIL  
[+ object]
: to prevent (someone) from doing something or achieving a goal : defeat — often used as (be) foiled
: to prevent (something) from happening or being successful
2foil/ˈfojəl/noun
pluralfoils
2foil
/ˈfojəl/
noun
pluralfoils
Learner's definition of FOIL  
[noncount]  : a very thin and light sheet of metal
— see also silver foil, tinfoil
[count]  : someone or something that is different from another person or thing in a useful or appealing way — usually + for or to
[count]  : a sword that has a light, thin blade and that is used in the sport of fencing
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