foil

IPA: fˈɔɪɫ

Root Word: FOIL

(mnemonic) An acronym for the algorithm for multiplying two binomials.
A very thin sheet of metal.
(chiefly uncountable) Thin aluminium/aluminum (or, formerly, tin) used for wrapping food.
A thin layer of metal put between a jewel and its setting to make it seem more brilliant.
(authorship, figuratively) In literature, theatre/theater, etc., a character who helps emphasize the traits of the main character and who usually acts as an opponent or antagonist, but can also serve as the sidekick of the protagonist.
(figuratively) Anything that acts by contrast to emphasise the characteristics of something.
(fencing) A very thin sword with a blunted (or foiled) tip
A thin, transparent plastic material on which marks are made and projected for the purposes of presentation. See transparency.
A premium trading card with a glossy finish.
(heraldry) A stylized flower or leaf.
Failure when on the point of attainment; defeat; frustration; miscarriage.
One of the incorrect answers presented in a multiple-choice test.
(hunting) The track of an animal.
(architecture) A small arc in the tracery of a window, etc.
(hydrodynamics, nautical) Clipping of hydrofoil. [(nautical) A wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag.]
(aerodynamics, aviation) Clipping of aerofoil/airfoil.

(transitive) To apply the FOIL algorithm to.
(transitive) To cover or wrap with foil.
To prevent (something) from being accomplished.
To prevent (someone) from accomplishing something.
To blunt; to dull; to spoil.
(obsolete) To tread underfoot; to trample.
(mathematics) To expand a product of two or more algebraic expressions, typically binomials.
(obsolete) To defile; to soil.
(nautical) Clipping of hydrofoil. [(nautical, intransitive) To operate or use or ride atop a hydrofoil wing on a hull so equipped.]

Examples of "foil" in Sentences