frustrate, thwart, foil, baffle, balk mean to check or defeat another's plan or block achievement of a goal. frustrate implies making vain or ineffectual all efforts however vigorous or persistent.

FOIL definition: 1. a very thin sheet of metal, especially used to wrap food in to keep it fresh: 2. a piece of a…. Learn more.

As a verb, if you foil someone's plans or attempts to do something, you cause them to fail. Your brother will be really mad if you foil his plans to hide his mediocre report card from your parents.

FOIL definition: to prevent the success of; frustrate; balk. See examples of foil used in a sentence.

Reynolds Wrap Non Stick Aluminum Foil, Nonstick Aluminum Foil Roll, Prevents Food Sticking and Messy Cleanup, Great for Covering Casseroles and leftovers, 43.33 Yards x 12 Inches, 130 Sq.Ft.

One that stands in contrast to and emphasizes the distinctive characteristics of another: "I am resolved my husband shall not be a rival, but a foil to me" (Charlotte Brontë).

If you foil someone's plan or attempt to do something, for example to commit a crime, you succeed in stopping them from doing what they want.

FOIL meaning: 1. a very thin sheet of metal, especially used to wrap food in to keep it fresh: 2. a piece of a…. Learn more.

Welcome to NYC Government’s home for filing Freedom of Information Law (FOIL) requests. On this site you can request records from every New York City agency by filing a Freedom of Information …

Jan 31, 2026 · foil (countable and uncountable, plural foils) A very thin sheet of metal or plastic. (chiefly uncountable) Thin aluminium / aluminum (or, formerly, tin) used for wrapping food. A thin layer of …