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WordReference Random House Learner's Dictionary of American English © 2024foil1 /fɔɪl/USA pronunciation v. [~ + object]- to prevent the success of;
thwart:Loyal troops foiled the revolt.
foil2 /fɔɪl/USA pronunciation n. - Metallurgy metal in very thin sheets:[uncountable]aluminum foil.
- a person or thing that serves as a contrast to another:[countable]Goodness was a foil to their villainy.
See -foli-.foil3 /fɔɪl/USA pronunciation n. - Sport[countable] a flexible four-sided sword having a blunt point, used for fencing.
WordReference Random House Unabridged Dictionary of American English © 2024foil1 (foil),USA pronunciation v.t. - to prevent the success of;
frustrate;
balk:Loyal troops foiled his attempt to overthrow the government. - to keep (a person) from succeeding in an enterprise, plan, etc.
n. - [Archaic.]a defeat;
check;
repulse.
- Anglo-French foller, Old French fuler to trample, full (cloth). See full2
- Middle English foilen, 1250–1300
- 1.See corresponding entry in Unabridged thwart; impede, hamper.
foil2 (foil),USA pronunciation n. - Metallurgymetal in the form of very thin sheets:aluminum foil.
- Metallurgythe metallic backing applied to glass to form a mirror.
- a thin layer of metal placed under a gem in a closed setting to improve its color or brilliancy.
- a person or thing that makes another seem better by contrast:The straight man was an able foil to the comic.
- Architecturean arc or a rounded space between cusps, as in the tracery of a window or other ornamentation.
- Aeronauticsan airfoil or hydrofoil.
v.t. - to cover or back with foil.
- to set off by contrast.
- Latin folium leaf, blade)
- Latin folia leaves), fuel, fueil, foil (
- Old French fuelle, fueille, foille (
- Middle English foille, foil 1350–1400
- 4.See corresponding entry in Unabridged contrast, complement, counterpart.
foil3 (foil),USA pronunciation n. [Fencing.]- Sporta flexible four-sided rapier having a blunt point.
- Sport foils, the art or practice of fencing with this weapon, points being made by touching the trunk of the opponent's body with the tip of the weapon.
- origin, originally uncertain 1585–95
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