A very thin sheet of metal.
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) 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.
Anything that acts by contrast to emphasise the characteristics of something.
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 stylized flower or leaf.
A hydrofoil.
An aerofoil/airfoil.
To cover or wrap with foil.