foil

C2+ Topic:People & Society

US /fɔɪl/ UK /fɔɪl/ See IPA manual

Meanings

1

noun
a person or thing that contrasts with and enhances another; to thwart

The witty servant serves as a foil to the brooding prince.

Thesaurus

Synonyms

1 noun · a person or thing that... thwart frustrate stop contrast counter baffle check

Opposites

help aid assist abet

Word family

Derived forms foiledfoiling

Etymology

From Middle English foilen ('to trample, defeat'), from Old French fouler ('to trample, full cloth'), from Vulgar Latin *fullare, from Latin fullo ('fuller of cloth'). The 'thin metal sheet' sense is from Old French foil ('leaf'), from Latin folium.

fouler Old French fullo Latin

View etymology graph ->

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# foil

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** /fɔɪl/
**IPA (UK):** /fɔɪl/

## Meanings
1. a person or thing that contrasts with and enhances another; to thwart

## Examples
- The witty servant serves as a foil to the brooding prince.

## Synonyms
- thwart
- frustrate
- stop
- contrast
- counter
- baffle
- check

## Antonyms
- help
- aid
- assist
- abet

## Derived Forms
- foiled
- foiling

## Roots and Affixes
- Root: fouler
- Root: fullo

## Etymology
From Middle English foilen ('to trample, defeat'), from Old French fouler ('to trample, full cloth'), from Vulgar Latin *fullare, from Latin fullo ('fuller of cloth'). The 'thin metal sheet' sense is from Old French foil ('leaf'), from Latin folium.

## AI Etymology
Foil comes from Middle English foilen ('to trample, defeat'), from Old French fouler ('to trample, full cloth'), from Vulgar Latin *fullare, from Latin fullo ('fuller of cloth'). The 'thin metal sheet' sense is from Old French foil ('leaf'), from Latin folium. The development is chiefly a borrowing or learned continuation, carrying an older form and meaning into English rather than building the word from a purely native base. In present use, it is used as a noun and verb meaning "a person or thing that contrasts with and enhances another; to thwart", so the historical material remains connected with the current sense rather than standing as bare ancestry. The wider English family includes derivatives such as foiled and foiling, showing how the same historical material continues to organize neighboring vocabulary. The named historical forms include Old French fouler and Latin fullo, keeping the history tied to concrete forms rather than a loose resemblance.

## Topics
- People & Society

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foil

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