To render (an effort or attempt) vain or nugatory; to baffle; to outwit; to balk; to frustrate; to defeat.
To blunt; to dull; to spoil; as, to foil the scent in chase.
To defile; to soil.
Failure of success when on the point of attainment; defeat; frustration; miscarriage.
A blunt weapon used in fencing, resembling a smallsword in the main, but usually lighter and having a button at the point.
The track or trail of an animal.
A leaf or very thin sheet of metal; as, brass foil; tin foil; gold foil.
A thin leaf of sheet copper silvered and burnished, and afterwards coated with transparent colors mixed with isinglass; -- employed by jewelers to give color or brilliancy to pastes and inferior stones.
Anything that serves by contrast of color or quality to adorn or set off another thing to advantage.
A thin coat of tin, with quicksilver, laid on the back of a looking-glass, to cause reflection.
The space between the cusps in Gothic architecture; a rounded or leaflike ornament, in windows, niches, etc. A group of foils is called trefoil, quatrefoil, quinquefoil, etc., according to the number of arcs of which it is composed.
Wrap fish fillets, sliced veggies, and other quick-cooking items inside foil packets with bundles of fresh herbs and throw them directly on the grill; the steam will release the herb's perfume and flavor anything contained inside the pouch. Emeril Lagasse
The simplest fix for better grilling is to line the inside of your barbecue with tin foil. It dramatically affects how evenly the heat is distributed. That crusty black hibachi or Weber grill is doing your food no favors. Nathan Myhrvold
We can't gather the intelligence we need to foil future attacks, if we are blindly granting terrorists the right to remain silent. But for some reason, we've already done that - with the terrorist who tried to bring down Flight 253. Peter T. King
foil in French is fleuret, feuille mince
foil in German is Metallfolie, Folie
foil in Italian is foglia laminata
foil in Norwegian is forpurre, forhindre, florett, folie
foil in Spanish is lamina
foil in Swedish is folie, florett