|1.||[ noun ] a piece of thin and flexible sheet metal|
"the photographic film was wrapped in foil"
|Related terms:||sheet_metal aluminum_foil tinfoil gold_foil chaff|
|2.||[ verb ] hinder or prevent (the efforts, plans, or desires) of|
|Synonyms:||frustrate thwart cross bilk scotch baffle spoil queer|
"What ultimately frustrated every challenger was Ruth's amazing September surge" "foil your opponent"
|Related terms:||prevent discourage disappoint short-circuit dash ruin double_cross frustrating frustration cross|
|3.||[ verb ] enhance by contrast|
"In this picture, the figures are foiled against the background"
|Related terms:||contrast enhancer|
|4.||[ noun ] anything that serves by contrast to call attention to another thing's good qualities|
"pretty girls like plain friends as foils"
|Related terms:||attention enhance|
|5.||[ verb ] cover or back with foil|
|6.||[ 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|
"the fins of a fish act as hydrofoils"
|7.||[ noun ] picture consisting of a positive photograph or drawing on a transparent base; viewed with a projector|
|Related terms:||picture slide viewgraph|
|8.||[ noun ] Last name, frequency rank in the U.S. is 26595|
|9.||[ noun ] (sport,arms) a light slender flexible sword tipped by a button|