FOIL

I. transitive verb see: full Date: 14th century trample , 2. to prevent from attaining an end ; defeat , to bring to naught ; thwart , see: frustrate II. noun Date: 15th century defeat , the track or trail of an animal, III. noun see: blade Date: 14th century very thin sheet metal , a thin piece of material (as metal) put under an inferior or paste stone to add color or brilliance, someone or something that serves as a contrast to another , 4. an indentation between cusps in Gothic tracery, one of several arcs that enclose a complex figure, hydro~ 1, IV. transitive verb Date: 1611 to back or cover with ~, to enhance by contrast, V. noun Etymology: origin unknown Date: 1594 a light fencing sword having a usually circular guard and a flexible blade of rectangular section tapering to a blunted point, the art or sport of fencing with the ~