Hydrofoil
Part of speech: noun
Definition: A wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag. A vessel equipped with such a device.
Foil
Part of speech: verb
Definition: To prevent (something) from being accomplished.To multiply two binomials together.
Part of speech: noun
Definition: 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.In literature, theatre/theater, etc, a character who helps emphasize the traits of the main character.Anything that acts to emphasise the characteristics of something.A very thin sword with a blunted (or foiled) tipA thin, transparent plastic material on which marks are made and projected for the purposes of presentation. See transparency.A stylized flower or leaf.Shortened form of hydrofoil.Shortened form of aerofoil/airfoil.
Example sentence: Why does everyone think the future is space helmets, silver foil, and talking like computers, like a bad episode of Star Trek?