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# foil

noun (foil — uncountable; a foil — a fencing sword); verb (foil, foils, foiled, foiling)

«foil» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Metal, usually aluminium, made into a very thin sheet, used to wrap and cook food. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#m1)
2. As a verb, to stop someone from doing a bad plan: "The police foiled the robbery." [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#m2)
3. A light thin sword used in the sport of fencing. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#m3)

### In the lessons

In everyday life, foil keeps sandwiches fresh and covers food in the oven. In science, foil is a metal, so it conducts electricity and reflects heat. In safety, never put foil in a microwave — it can spark. In stories, heroes foil the villain's plans. Phrases: tin foil, aluminium foil, kitchen foil, foil a plan, foiled again.

### Examples

- Wrap the sandwiches in foil. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#x1)
- Cover the dish with foil and bake it. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#x2)
- Never put foil in the microwave. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#x3)
- The detective foiled the thief's plan. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#x4)
- "Foiled again!" shouted the villain. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#x5)
- Foil is a good conductor of electricity. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#x6)
- Once more she went to her Fairy-godmother who, astonished that her plan had been foiled, now told her to ask for another gown the colour of the moon. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/#x7)

### Note

As a material it is uncountable: "some foil", "a sheet of foil". Spelling: British "aluminium", American "aluminum". "Tin foil" is a common name, but it is usually aluminium, not tin. Regular verb: foiled.

## On Mova

- [Trees and pragmatics of «foil» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/foil/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«foil» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/foil.html) on Mova free.