Definitions
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”
noun
anything that serves by contrast to call attention to another thing's good qualities
“pretty girls like plain friends as foils”
verb
hinder or prevent (the efforts, plans, or desires) of
“foil your opponent”
noun
picture consisting of a positive photograph or drawing on a transparent base; viewed with a projector
noun
a light slender flexible sword tipped by a button
noun
a piece of thin and flexible sheet metal
“the photographic film was wrapped in foil”
verb
cover or back with foil
“foil mirrors”
verb
enhance by contrast
“In this picture, the figures are foiled against the background”
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