FOIL

Binomial multiplication method

Foil has two distinct origins in English.

One gives us the thin sheet of metal—aluminum foil, tin foil—and the fencing sword with its flexible blade and blunted tip.

The other gives us the verb meaning to thwart or frustrate: The hero foiled the villain's plot.

A foil is also a person or thing that makes another seem better by contrast: Watson serves as a foil to Sherlock Holmes.

thwart

frustrate

Prevent from succeeding

defeat · spoil · hinder · undermine · sabotage · oppose · counter · stop · impede · circumvent

metalsheet

aluminum

Element thirteen

  • wrapperOuter protective layer
  • tinElement fifty, Sn
  • shinyReflecting light smoothly

crinkle · wrap · baking · cooking · kitchen · Reynolds · roll · sheet · reflective · liner

contrast

counterpart

Corresponding person or thing

complement · sidekick · backdrop · comparison · offset · relief · emphasis · Watson · antithesis · mirror

fencing

épée

Fencing sword, points only

  • saberCurved military sword
  • bladeFlat cutting edge
  • parryDefensive blade deflection

thrust · lunge · riposte · piste · fencer · duel · guard · bout · touché · mask

aerodynamic

wing

Limb enabling flight

  • airfoilLift-generating curved surface
  • hydrofoilWing that lifts boats
  • liftMechanism for vertical transport

drag · airplane · spoiler · flap · profile · sailboat · catamaran · racing · speed · curve

Categories
Opposites
narrative function

FOILdouble

Twice the amount

mirror · twin · doppelgänger · counterpart · echo

plan outcome

FOILenable

Make something feasible

aid · assist · help · facilitate · advance

material properties

FOILplate

Flat dish for food

slab · sheet metal · ingot · block · bar

Phrases
Family

foils, foiled, foiling

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G