foil
//fɔɪl//
Noun
foilSingular
foilsPlural
1
A very thin sheet of metal, especially aluminum, used for wrapping or covering food.
Wrap the leftovers in foil to keep them fresh.
Synonym
Noun
foilSingular
foilsPlural
1
A person or thing that contrasts with and enhances the qualities of another.
The quiet character serves as a foil to the loud protagonist.
Noun
foilSingular
foilsPlural
1
A light, slender sword used in fencing, with a button on the tip to prevent injury.
She picked up her foil and prepared for the fencing match.
Verb
foilInfinitive
foilPresent tense
foiledPast tense
foiledPast participle
foilingPresent participle
foilsThird-person singular
1
To prevent someone or something from succeeding; to frustrate or thwart a plan or attempt.
The police foiled the bank robbery.