- Foil is defined as a thin piece of metal, or a sword used in fencing.
- An example of foil is aluminum foil, a thin metal sheet used to cover food before you put it in the freezer.
- An example of foil is a long, thin sword used in sword fighting.
- To foil is defined as to keep something from happening.
An example of foil is when your mom catches you sneaking out to go to a party.
Foil wrapped food on a grill.
foil definition by Webster's New World
- to keep from being successful; thwart; frustrate
- Hunting to make (a scent, trail, etc.) confused, as by recrossing, in order to balk the pursuers
Origin: Middle English foilen ; from Old French fuler, to trample on, subdue: see full
- Archaic the scent or trail of an animal
- Archaic a thwarting
- a leaflike, rounded space or design between cusps or in windows, etc., as in Gothic architecture
- a very thin sheet or leaf of metal; specif., such a sheet, as of aluminum, used for wrapping food, etc.
- the metal coating on the back of a mirror
- a thin leaf of polished metal placed under an inferior or artificial gem to give it brilliance
- a person or thing that sets off or enhances another by contrast
Origin: Middle English ; from Old French fuil (Fr feuille), a leaf ; from Classical Latin folia ; from folium, leaf: see foliate
- to cover or back with foil
- Rare to serve as a contrast to
- to decorate (windows, etc.) with foils
- a long, thin fencing sword with a button on the point to prevent injury
- the art or sport of fencing with foils
Origin: ; from uncertain or unknown; perhaps
foil definition by American Heritage Dictionary
transitive verb foiled, foil·ing, foils
- To prevent from being successful; thwart.
- To obscure or confuse (a trail or scent) so as to evade pursuers.
- A repulse; a setback.
- The trail or scent of an animal.
Origin: Middle English foilen, to trample, defile, variant of filen, to defile; see file3.
- A thin, flexible leaf or sheet of metal: aluminum foil.
- A thin layer of polished metal placed under a displayed gem to lend it brilliance.
- One that by contrast underscores or enhances the distinctive characteristics of another: “I am resolved my husband shall not be a rival, but a foil to me” (Charlotte Brontë).
- The reflective metal coating on the back of a glass mirror.
- Architecture A curvilinear, often lobelike figure or space formed between the cusps of intersecting arcs, found especially in Gothic tracery and Moorish ornament.
- a. An airfoil.b. Nautical A hydrofoil.
- To cover or back with foil.
- To set off by contrast.
Origin: Middle English, from Old French foille, from Latin folia, pl. of folium, leaf; see bhel-3 in Indo-European roots.
- A fencing sword having a usually circular guard and a thin, flexible four-sided blade with a button on the tip to prevent injury.
- The art or sport of fencing with such a sword. Often used in the plural: a contest at foils.
Origin: Origin unknown.