A very thin sheet of metal. / (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.

(hunting) The track of an animal.

Failure when on the point of attainment; defeat; frustration; miscarriage. / One of the incorrect answers presented in a multiple-choice test.

(mnemonic) An acronym for the algorithm for multiplying two binomials.

(transitive) To cover or wrap with foil. / (nautical) Clipping of hydrofoil.

simple past tense and past participle of foil

(architecture) Having a foil.

Third-person singular simple present indicative form of foil

plural of foil

A surname.