To prevent (something) from being accomplished.
To expand a product of two or more algebraic expressions, typically binomials.
To blunt; to dull; to spoil.
To prevent (someone) from accomplishing something.
To cover or wrap with foil.
Thin aluminium/aluminum (or, formerly, tin) used for wrapping food.
A thin, transparent plastic material on which marks are made and projected for the purposes of presentation. See transparency.
A very thin sheet of metal.
A thin layer of metal put between a jewel and its setting to make it seem more brilliant.
A very thin sword with a blunted (or foiled) tip
Anything that acts by contrast to emphasise the characteristics of something.
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.
One of the incorrect answers presented in a multiple-choice test.
A stylized flower or leaf.
Failure when on the point of attainment; defeat; frustration; miscarriage.
The track of an animal.
To make profound; to make a concept unnecessarily complicated.