foil Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “foil” in the English Dictionary

(Definition of foil from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"foil" in American English

See all translations


 us   /fɔɪl/
  • foil noun (METAL SHEET)

[U] a very ​thinsheet of ​metal, used esp. for ​wrappingfood: aluminum foil
  • foil noun (COMPARISON)

[C] someone or something that makes another’s good or ​badqualities all the more ​noticeable: The ​older, ​cynicalcharacter in the ​play is the ​perfect foil for the ​innocent William.
  • foil noun (BLADE)

[C] a ​thin, ​lightweapon with a ​longblade used in the ​sport of ​fencing

foilverb [T]

 us   /fɔɪl/
  • foil verb [T] (PREVENT)

to ​prevent someone or something from being ​successful: An ​attemptedcoup against the country’s ​militaryruler was foiled ​yesterday.

FOILnoun [U]

 us   /fɔɪl/
mathematics abbreviation for first, ​outer, ​inner, last, the ​rule for ​multiplying two binomials (= ​statements that have two ​numbers or ​symbols each)
(Definition of foil from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of foil?
Add Cambridge dictionaries to your browser to your website
Word of the Day


a musical instrument, especially one made from a skin stretched over the end of a hollow tube or bowl, played by hitting with the hand or a stick

Word of the Day

I used to work hard/I’m used to working hard (Phrases with ‘used to’)
I used to work hard/I’m used to working hard (Phrases with ‘used to’)
by Kate Woodford,
February 10, 2016
On this blog, we like to look at words and phrases in the English language that learners often have difficulty with. Two phrases that can be confused are ‘used to do something’ and ‘be used to something/doing something’. People often use one phrase when they mean the other, or they use the wrong

Read More 

farecasting noun
farecasting noun
February 08, 2016
predicting the optimum date to buy a plane ticket, especially on a website or using an app A handful of new and updated websites and apps are trying to perfect the art of what’s known as farecasting – predicting the best date to buy a ticket.

Read More