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- Dictionaryfoil/fɔɪl/
verb
- 1. prevent (something considered wrong or undesirable) from succeeding: "a brave policewoman foiled the armed robbery"
noun
- 1. the track or scent of a hunted animal.
- 2. a setback in an enterprise; a defeat. archaic
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FOIL definition: 1. a very thin sheet of metal, especially used to wrap food in to keep it fresh: 2. a piece of a…. Learn more.
The meaning of FOIL is to prevent from attaining an end : defeat. How to use foil in a sentence. Synonym Discussion of Foil.
FOIL meaning: 1. a very thin sheet of metal, especially used to wrap food in to keep it fresh: 2. a piece of a…. Learn more.
Foil definition: to prevent the success of; frustrate; balk. See examples of FOIL used in a sentence.
picture consisting of a positive photograph or drawing on a transparent base; viewed with a projector. synonyms: transparency. see more. verb. enhance by contrast. “In this picture, the figures are foiled against the background” see more. noun. a light slender flexible sword tipped by a button.
1. To prevent from being successful; thwart: The alarm system foiled the thieves' robbery attempt. 2. To obscure or confuse (a trail or scent) so as to evade pursuers. n. Archaic. 1. A repulse; a setback. 2. The trail or scent of an animal. [Middle English foilen, to trample, defile, variant of filen, to defile; see file3 .] foil 2. (foil) n. 1.
If you foil someone's plan or attempt to do something, for example to commit a crime, you succeed in stopping them from doing what they want. A brave police chief foiled an armed robbery by grabbing the thief's shotgun.