To cover or wrap with foil.
To prevent (something) from being accomplished.
I was foiled by my superior
To prevent (someone) from accomplishing something.
They foiled my plans.
To blunt; to dull; to spoil.
to foil the scent in hunting
To tread underfoot; to trample.
To expand a product of two or more algebraic expressions, typically binomials.
To defile; to soil.
The act by which something is foiled; prevention of success.
the foilings of our expectations
The track of game, such as deer, in the grass.
A foil.