uncountable very light thin sheets of metal used for wrapping things, especially food
Wrap the cheese in foil to keep it moist.
Synonyms and related words
Things used for keeping food fresh
aluminium foil
best-before date
Cellophane
2
countable usually singularsomeone or something that makes another person or thing seem better or more attractive because of the differences between them
foil to/for:
The plainstonefloor is a perfect foil to the highlydecoratedwalls.
Synonyms and related words
Comparison and comparisons
comparison
perspective
parallel
3
countable a light thin sword used in the sport of fencing
Synonyms and related words
Fencing
épée
fence
fencer
foil
noun
US /fɔɪl/
Other entries for this word
foilverb
silver foilnoun
aluminum foilnoun
Word Forms
singular
foil
plural
foils
DEFINITIONS3
1
uncountable very light thin sheets of metal used for wrapping things, especially food
Wrap the cheese in foil to keep it moist.
Synonyms and related words
Things used for keeping food fresh
aluminum foil
Cellophane
clingfilm
2
countable usually singularsomeone or something that makes another person or thing seem better or more attractive because of the differences between them
foil to/for:
The plainstonefloor is a perfect foil to the highlydecoratedwalls.
Synonyms and related words
Comparison and comparisons
comparison
perspective
parallel
3
countable a light thin sword used in the sport of fencing
Synonyms and related words
Fencing
épée
fence
fencer
foil
verb transitive
UK /fɔɪl/
Other entries for this word
foilnoun
silver foilnoun
aluminium foilnoun
Word Forms
present tense
I/you/we/they
foil
he/she/it
foils
present participle
foiling
past tense
foiled
past participle
foiled
DEFINITIONS1
1
to prevent someone from doing something that they are trying to do
The escapeattempt was foiled by wardensfiring in the air.
Synonyms and related words
To stop someone doing something
stop
prevent
check
foil
verb transitive
US /fɔɪl/
Other entries for this word
foilnoun
silver foilnoun
aluminum foilnoun
Word Forms
present tense
I/you/we/they
foil
he/she/it
foils
present participle
foiling
past tense
foiled
past participle
foiled
DEFINITIONS1
1
to prevent someone from doing something that they are trying to do
The escapeattempt was foiled by wardensfiring in the air.