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.

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

Look up foil in Wiktionary, the free dictionary.

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).

6 days ago · 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 …

Dec 23, 2025 · While it doesn't matter which side of the foil you cook on, there is a reason one side is shiny and the other is dull. Read on to learn more.

If you refer to one thing or person as a foil for another, you approve of the fact that they contrast with each other and go well together, often in a way that makes the second thing or person …

Definition of foil noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Sep 12, 2025 · Aluminum foil is a kitchen staple that just about everyone already has at home. Sure, it’s great for covering casseroles or wrapping up leftovers — and all the typical, top-of …