Scrabble?! FOIL

Definitions of FOIL in various dictionaries:

noun - a piece of thin and flexible sheet metal

noun - anything that serves by contrast to call attention to another thing's good qualities

noun - a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through

noun - picture consisting of a positive photograph or drawing on a transparent base

noun - a light slender flexible sword tipped by a button

verb - enhance by contrast

verb - hinder or prevent (the efforts, plans, or desires) of

verb - cover or back with foil

To prevent from being successful; thwart.

To obscure or confuse (a trail or scent) so as to evade pursuers.

A repulse; a setback.

The trail or scent of an animal.

A thin, flexible leaf or sheet of metal: aluminum foil.

A thin layer of polished metal placed under a displayed gem to lend it brilliance.

One that by contrast underscores or enhances the distinctive characteristics of another: “I am resolved my husband shall not be a rival, but a foil to me” (Charlotte Bront).

The reflective metal coating on the back of a glass mirror.

A curvilinear, often lobelike figure or space formed between the cusps of intersecting arcs, found especially in Gothic tracery and Moorish ornament.

An airfoil.

A hydrofoil.

To cover or back with foil.

To set off by contrast.

A fencing sword having a usually circular guard and a thin, flexible four-sided blade with a button on the tip to prevent injury.

Often foils.

adj - to prevent the success of [v -ED, -ING, -S] : FOILABLE